OM5 Gaming Chair ED-GM-5CH Mid-Back Ergonomic Task Chair

The OM5 Gaming Chair ED-GM-5CH by Office Master offers the latest in ergonomic design and comfort. It is engineered  as a  high end comfortable and supportive office task chair. It is also selected as the most recommended gaming chair by Tim Clark editor of PCGAMERalso featured on Youtube. Linus of LinusTechTips says the OM5 is the most comfortable chair . The OM5 has no levers or manual adjustments; it naturally contours to your body, and maintains your posture as you change from sitting upright to a more relaxed laid back (reclined) position without having to use adjustments levers.

4.8 out of 5 (based on 32 reviews)
Product ID: 16688
Highlights
Options
List Price: $668.00
Our Price: $434.20
Shipping: FREE SHIPPING *
Usually ships in 7 to 10 business days
* applies to Contiguous United States

What to consider when choosing a gaming chair:

  • Ergonomic design and comfort: The average gamer spends 8-12 hours a week playing video games. This warrants a chair that offers plenty of back and seat support for maximum comfort while keeping the body in a correct posture at all times.

  • Gaming chair height: To avoid straining your neck looking up or down at a screen, chairs with height adjustment ability and lumbar support allow gamers to look straight at their screen.

  • Office task chairs: Office chairs are designed to provide lumbar and neck support as users sit for long hours, making them perfect for gamers. As well, with adjustable armrests and, in some cases, adjustable lumbar support, adjust your chair to the perfect position for you. Plus, with a multi-functional chair you won`t have to switch chairs when you switch gears.

Description

Office Master understands why PC gamers need gaming chairs with comfort and durability as well as ergonomic design. Tested by PCGamer for its ergonomic functionality and adjustability in height, arm rests, and back rest, the OM5 makes it ideal for both work and games.

This popular gaming chair offers continuous support for your body as you move. As you recline in the OM5, the seat pan moves with your body, allowing you to change to more relaxed positions seamlessly, making it the most comfortable gaming chair.

No levers or handles are required to make adjustments for your spine or lumbar support; the chair adjusts on its own to the size and position of your body.

Adjust your OM5 with three unique adjustments: armrests that move up and down and slide back and forth; a "waterfall" effect on the Standard and EX models that adjusts the seat front up and down and; a headrest that can be elevated or lowered to provide desired support.

Specifications

Model ED-GM-5CH ED-OM5-EX ED-OM5-XT
Overall Width 27" 27" 28"
Overall Height 37 - 42" 40 - 45" 40.5 - 45.5"
Back 18" W x 21" H 18" W x 24.5" H 18" W x 24.5" H
Seat 19.75" W x 17-18.5" D (16-17.5" D Back Upholstery) 19.75" W x 17-18.5" D (16-17.5" D Back Upholstery) 19.75" W x 21" D (20" D Back Upholstery)
Seat Height with 4" cylinder 14.7 - 18.5" (4" travel range) 14.7 - 18.5" ( 4" travel range) 17.7 - 21.5" ( 4" travel range)
Seat Height with 5" cylinder (standard cylinder) 16 - 21" (5" travel range) 16 - 21" ( 5" travel range) 19 - 24" ( 5" travel range)
Seat Height with 6" cylinder 18.5 - 25" (6" travel range) 18.5 - 25" ( 6" travel range) 21.5 - 28" ( 6" travel range)
COM

Back = 0.75 yards

Seat = 0.75 yards

Back = 1 yard

Seat = 0.75 yards

Back = 1 yard

Seat = 1 yard

Carton Weight 64 lbs 67 lbs 69 lbs
UPS Weight 101 lbs 195 lbs 195 lbs
Arms Optional Optional Optional
Weight Capacity 300 lbs 300 lbs 300 lbs
Warranty Lifetime Limited Lifetime Limited Lifetime Limited
Lifetime limited warranty on all structural components and 5-year warranty on fabrics & foam. For further information, please check our “downloads” tab.

Features

  • Variable back resistance
  • PolyFlex Back
  • Body Activated Motion
  • Swing Arm
  • Front Edge Waterfall Flex
  • Designed to support users up to 300 lbs under standing commercial usage

Option 1: Frame

OM5 Modern Black Frame
Black Frame
Grey Frame
Gray Frame

Options 2 and 3: Cylinders and Base Type

OB5 - 5" Black Cylinder and B27 Black Nylon Base

OB5 - 5" Black Cylinder

B27 - Black Nylon Base

OC5 - 5" Polished Chrome Cylinder and P27 Polished Aluminum Base

OC5 - 5" Polished Chrome Cylinder

P27 - Polished Aluminum Base

Office Master GSPPKG Fixed Height Chrome Footring and Base

OC8 - 8" Chrome Cylinder

GSP - Fixed Height Chrome Footring and Base

CYL-4HD - 4" heavy-duty cylinder
CYL-4HD - 4" heavy-duty cylinder
CYL-6SHD - 6" heavy-duty cylinder
CYL-6SHD - 6" heavy-duty cylinder
Office Master Cylinders

Option 4: Arms Type

MR5 - Height adjustable T-arms
MR5 - Height adjustable T-arms
MR45 - Height adjustable T-arms with smooth fore-aft, side-to-side, and pivoting motion armpads.
MR45 - Height adjustable T-arms with smooth fore-aft, side-to-side, and pivoting motion armpads
MR50 - Height adjustable T-arms with RP50 extra-wide arm top mechanism and superior range of motion (2" per side).
MR50 - Height adjustable T-arms with RP50 extra-wide arm top mechanism and superior range of motion (2" per side)
MR50 - Height adjustable T-arms with RP50 extra-wide arm top mechanism and superior range of motion (2" per side).
MR65 - Height adjustable T-arms with RP65 lockable arm pad

Option 5: PolyFlex Back

PB - Modern Black
PB - Modern Black
PG - Palladium Grey
PG - Palladium Grey
PW - Arctic White
PW - Arctic White

Option 6 & 7: Back & Seat Upholstery Fabric Color

Chair back could be upholstered as mesh with following 11 Mesh fabrics

OM5 Zodiac Mesh (Back Only)

Content 100% Polyester
Backing None
Width 54"
Finish None
Abrasion ASTM-D-3597 (Cotton Duck) Exceeds 1,002,000 Double Rubs
Breaking Strength ASTM-D-5034 Exceeds Warp 129 lbf/Fill 78 lbf
Lightfastness 40 Hrs. - Class 5
Colorfastness To Crocking AATCC-8 Passes Class 4 min.
Flammability Passes California TB 117-2013; NFPA 260, Class 1; ASTM E84, Class 1 or A; FMVSS 302
Cleaning Code W
OM5 Zodiac 2300 Scorpio Mesh Back Fabric Color

2300 Scorpio

OM5 Zodiac Mesh Back 2301 Gemini Fabric Color

2301 Gemini

OM5 Zodiac Mesh Back 2302 Virgo Fabric Color

2302 Virgo

OM5 Zodiac Mesh Back 2303 Taurus Fabric Color

2303 Taurus

OM5 Zodiac Mesh Back 2304 Capricorn Fabric Color

2304 Capricorn

OM5 Zodiac Mesh Back 2305 Pisces Fabric Color

2305 Pisces

OM5 Zodiac Mesh Back 2306 Aquarius Fabric Color

2306 Aquarius

OM5 Zodiac Mesh Back 2307 Leo Fabric Color

2307 Leo

OM5 Zodiac Mesh Back 2308 Aries Fabric Color

2308 Aries

OM5 Zodiac Mesh Back 2309 Sagittarius Fabric Color

2309 Sagittarius

OM5 Zodiac Mesh Back 2310 Libra Fabric Color

2310 Libra

Following 4 grades of fabrics and leathers could be used for both chair seat and chair back

Grade 2 - SoftSit 2570 - 2579

Content 100% Polyester
Width 58/59" usable
Weight 17.87 +/- 1.0 oz./linear yard
Backing 100% Polyester non-woven scrim
Finish None
Repeat No
Abrasion 110,000 Double Rubs
Breaking Strength Warp 199 lbs. / Fill 199 lbs.
Crocking Dry Class 4 / Wet Class 3
Lightfastness 20 Hrs. - Class 4
Flammability Passes California TB 117-2013
Cleaning Code WS
Office Master Grade 2 SoftSit 2570 Graphene

2570 Graphene

Office Master Grade 2 SoftSit 2571 Basalt

2571 Basalt

Office Master Grade 2 SoftSit 2572 Ash

2572 Ash

Office Master Grade 2 SoftSit 2574 Kelvin

2574 Kelvin

Office Master Grade 2 SoftSit 2575 Tsunami

2575 Tsunami

Office Master Grade 2 SoftSit 2576 Magma

2576 Magma

Office Master Grade 2 SoftSit 2577 Molten

2577 Molten

Office Master Grade 2 SoftSit 2578 Kipuka

2578 Kipuka

Office Master Grade 2 SoftSit 2579 Phlox

2579 Phlox

Grade 3 - Line Up 3500 - 3508

Content 100% Post Consumer Recycled Polyester
Width 56"
Weight 1.24 oz./linear yard
Backing Acrylic
Finish Soil and Stain Resistant
Repeat Length 1.75"
Repeat Width 3.75"
Directional Yes
Abrasion 100,000 Double Rubs
Breaking Strength Warp 286 lbs. / Fill 309 lbs.
Crocking Dry Class 4.5 / Wet Class 4.5
Lightfastness 40 Hrs. - Class 5
Flammability Passes California TB 117-2013; NFPA 260, CLASS 1; UFAC, CLASS 1
Cleaning Code WS
Office Master Grade 3  Line Up 3500 Shadow Fabric Color

3500 Shadow

Office Master Grade 3  Line Up 3501 Pewter Fabric Color

3501 Pewter

Office Master Grade 3  Line Up 3503 Sandstone Fabric Color

3503 Sandstone

Office Master Grade 3  Line Up 3504 Baltic Fabric Color

3504 Baltic

Office Master Grade 3  Line Up 3505 Tranquil Fabric Color

3505 Tranquil

Office Master Grade 3 Line Up 3507 Spice Fabric Color

3507 Spice

Office Master Grade 3 Line Up 3508 Fern Fabric Color

3508 Fern

Grade 3 - Cinema 3P30 - 3P38

Content 100% Polyurethane
Backing

70% Polyester, 30% Cotton

Finish

Antimicrobial

Width 54"
Abrasion 200,000 Double Rubs
Lightfastness

Class 4/100 hrs, min

Flammability Passes California TB 117-2013; UFAC, CLASS 1; NFPA 260 CLASS 1; MVSS 302; IMO A. 652 (16) 8.2
Cleaning Code WS
Office Master Grade 3 Cinema 3P30 Noir Fabric Color

3P30 Noir

Office Master Grade 3 Cinema 3P31 Academy Fabric Color

3P31 Academy

Office Master Grade 3 Cinema 3P32 Ensemble Fabric Color

3P32 Ensemble

Office Master Grade 3 Cinema 3P33 Icon Fabric Color

3P33 Icon

Office Master Grade 3 Cinema 3P34 Blockbuster Fabric Color

3P34 Blockbuster

Office Master Grade 3 Cinema 3P36 Cue Fabric Color

3P36 Cue

Office Master Grade 3 Cinema 3P38 Cameo Fabric Color

3P38 Cameo

Grade 4 - Rocket 4500 - 4508

Content 27% Polyester, 73% Recycled Polyester
Width 54"
Backing None
Finish NANO-TEX Resists Spills
Repeat None
Abrasion 100,000+ Double Rubs
Breaking Strength Warp 50 lbs. / Fill 50 lbs.
Crocking Dry Class 4 / Wet Class 3
Lightfastness 40 Hrs. - Class 4
Flammability Passes California 117-E; UFAC Class 1; NFPA 260 Class 1
Cleaning Code WS
Office Master Grade 4 Rocket 4500 Ink

4500 Ink

Office Master Grade 4 Rocket 4501 Graphite

4501 Graphite

Office Master Grade 4 Rocket 4503 Taupe

4503 Taupe

Office Master Grade 4 Rocket 4504 Navy

4504 Navy

Office Master Grade 4 Rocket 4505 Bright Blue

4505 Bright Blue

Office Maste Grade 4 Rocket 4506 Red-Orange

4506 Red-Orange

Office Master Grade 4 Rocket 4507 Flame

4507 Flame

Office Master Grade 4 Rocket 4508 Sage

4508 Sage

Grade 5 - Comfortknit Solids 5501 - 5539

Content 100% Repreve PC Polyester
Width Manufactured to dimension specifications
Weight 16 oz./square yard
Backing None
Finish None
Repeat None
Directional Yes
Railroaded No
Abrasion Exceeds 250,000 Double Rubs
Breaking Strength Warp 209.4 lbf. / Fill 251.6 lbf.
Pilling Resistance Class 4
Crocking Dry 1 / Wet 1
Lightfastness 40 Hrs. - 1
Waterfastness Class 5 for staining / Class 5 for shade color
Flammability Passes California TB 117-2013; NFPA 260, CLASS 1; UFAC, CLASS 1
Cleaning Code W
Office Master Grade 5 Comfortknit Solids 5501 Flint

5501 Flint

Office Master Grade 5 Comfortknit Solids 5502 Monarch

5502 Monarch

Office Master Grade 5 Comfortknit Solids 5503 Smoke

5503 Smoke

Office Master Grade 5 Comfortknit Solids 5506 Cappucino

5506 Cappucino

Office Master Grade 5 COmfortknit Solids 5512 Xanadu

5512 Xanadu

Office Master Grade 5 Comfortknit Solids 5515 Baltic

5515 Baltic

Office Master Grade 5 Comfotknit Solids 5539 Wine

5539 Wine

Grade 5 - Architect 5700 - 5709

Content 100% Repreve PC Polyester
Width Manufactured to dimension specifications
Weight 16 oz./square yard
Backing None
Finish None
Repeat None
Directional Yes
Railroaded No
Abrasion Exceeds 250,000 Double Rubs
Breaking Strength Warp 199.8 lbf. / Fill 243.5 lbf.
Pilling Resistance Class 5
Crocking Dry 1 / Wet 1
Lightfastness 40 Hrs. - 1
Waterfastness Class 5 for staining / Class 5 for shade color
Flammability Passes California TB 117-2013; NFPA 260, CLASS 1; UFAC, CLASS 1
Cleaning Code W
Office Master Grade 5 Architect 5700 Gehry Fabric Color

5700 Gehry

Office Master Grade 5 Architect 5701 Gaudi Fabric Color

5701 Gaudi

Office Master Grade 5 Architect 5702 Kahn Fabric Color

5702 Kahn

Office Master Grade 5 Architect 5704 Meier Fabric Color

5704 Meier

Office Master Grade 5 Architect 5705 Pei Fabric Color

5705 Pei

Office Master Grade 5 Architect 5706 Yamasaki Fabric Color

5706 Yamasaki

Office Master Grade 5 Architect 5708 Hadid Fabric Color

5708 Hadid

Office Master Grade 5 Architect 5709 Wright Fabric Color

5709 Wright

Leather - Evita Leather

Width Varies
Finish Water based protection
Abrasion Taber test, 500 cycles, CS-10, 500 grams
Breaking Strength Newark Flex 20,000 cycles
Office Master Evita Black Leather LBLK

LBLK Black

Office Master Evita Vanilla Leather LVAN

LVAN Vanilla

Office Master Evita Stone Leather LSTN

LSTN Stone

Office Master Evita White Leather LWHT

LWHT White

Option 8: Casters - Wheels

OM5 CAS0065-S Caster

CAS0065-S (Soft)

CAS0050-SS - Safety soft casters

CAS0050-SS (Safety Soft)

CAS-RUB - Rubber casters

CAS-RUB (Rubber)

CAS0050-RB - Reverse-braking casters

CAS-REV Reverse Braking

GLD-R - Glides

GLIDES

Note: This gamer/office chair is custom-made and non-returnable. All fabric colors shown on your computer screen are approximate, based on the resolution of your monitor and subject to variation from the actual color on physical chairs. For more accurate ideas of color tones, etc. please contact customerservice@ergodirect.com or call 888-456-ERGO to obtain a sample or fabric swatch.

Officemaster OM5 Gaming Chair Specs Comparison Chart

 
OM5 Gaming Chair ED-GM-5CH Mid-Back Ergonomic Task Chair
This item: OM5 Gaming Chair ED-GM-5CH Mid-Back Ergonomic Task Chair
OM5 Gaming Chair ED-OM5-EX Tall Back Executive/Task Chair
Gaming Chair ED-OM5-XT Tall Back, Deep Seat Office Master OM5 Tall Chair
Seat Height 16 - 21" 16 - 21" 19 -24"
Overall Height 40 - 45" 40 - 45" 40.5 - 45.5"
Overall Width 27" 27" 28"
Back 18" W x 24.5" H 18" W x 24.5" H 18" W x 24.5" H
Seat 19.75" W x 17-18.5" D (16-17.5" D Back Upholstery) 19.75" W x 17-18.5" D (Seat depth is adjusted through the waterfall mechanism of the chair) 19.75" W x 21" D
Seat Depth with Back Foam Upholstery Foam upholstery adds extra thickness to the back seat and as the result decreases the seat depth by 1/2". Foam upholstery adds extra thickness to the back seat and as the result decreases the seat depth by 1/2". Foam upholstery adds extra thickness to the back seat and as the result decreases the seat depth by 1/2".
Weight Capacity 300 lbs 300 lbs 300 lbs
  Details Details

Frequently Asked Questions

Question: Hey, I was reading the return policy on the Office Master chair products you carry. I saw that none of these are returnable for a refund. It's hard to justify such a high price without the option to return, as that is a very high cost gamble without being able to sit in the chair first. I have no idea if the adjustments of this chair will suit me at all. Can exceptions be made in certain cases? Answer: The reason there is a no return on these chairs is because every chair is custom made to order since each customer chooses their own fabric color, casters, cylinders etc. Everything is built to order based on the customer's specific picks. Therefore if Officemaster accepted the returns they would not be able to re-sell those chairs. In some cases they do take them back but with a 35% re-stock fee and the customer would be responsible to ship the chair back.
Question: I am 5'2" and 130lb and wondering if this would be a good desk gaming/office chair. Is the chair flexible to different positions? And do the arm rest move in and out or is it only up/down/tilt in and out? Answer: The OM5 is very flexible when it comes to different positions. In fact, it has a unique sliding mechanism that allows the angle of your back to be adjusted based on how much pressure you lean back with. Since you are 5'2", we recommend you get the smaller 4" cylinder (Option #6). We have two options for armrests on this chair: height adjustable only (model A) and height adjustable with pivoting inward and forward/backward sliding (RP-45). Please see the product video # 3 from Linus TechTips on our product page for more information about the sliding back and armrests.
Question: I am 6'4, and curious to know if this chair would be fine or if I need to get the XT version. Please let me know! Answer: There are three versions of this chair. Please see comparison chart at the end of this product page for more details. The Gaming Chair ED-GM-5CH has a back that is 18" wide x 21" high and seat that is 19.75" wide x 17-18.5" deep . The EX and the XT version of this chair however have a taller back - 18" wide x 24.5" high and the XT also has a deeper seat - 19.75" wide x 21" deep. Based on these specs, you can decide if you need a taller back and a deeper seat. The one thing we may recommend is a heavier 6" cylinder compared to the standard 5". However we've had 6'4" tall users who have stuck with 5" cylinders too.
Question: I don't understand why there is an option for Back Upholstery Fabric Color when the chair seems to come with the polyflex back? Answer: Polyflex back is standard but you have the option of getting fabric on the back.
Model OM5-B, OM5-G
Manufacturer Ergodirect
Part Number OM5-B, OM5-G
ED-GM-5CH
Overall Width 27"
Overall Height 37 - 42"
Back 18" W x 21" H
Seat 19.75" W x 17-18.5" D (Seat depth is adjusted through the waterfall mechanism of the chair)
Seat Depth with Back Foam Upholstery Foam upholstery adds extra thickness to the back seat and as the result decreases the seat depth by 1/2".
Seat Height 16 - 21"
Base Diameter 26"
COM Back = 0.75 yards, Seat = 0.75 yards
Warranty Lifetime limited warranty on all structural components and 5-year warranty on fabrics & foam. For further information, please check our “downloads” tab.
Carton Weight 64 lbs
UPS Weight 101 lbs
Arms Optional
Weight Capacity 300 lbs
ED-OM5-EX
Overall Width 27"
Overall Height 40 - 45"
Back 18" W x 24.5" H
Seat 19.75" W x 17-18.5" D (16-17.5" D Back Upholstery)
Seat Height 16 - 21"
Base Diameter 26"
COM Back = 1 yard, Seat = 0.75 yards
Warranty Lifetime limited warranty on all structural components and 5-year warranty on fabrics & foam. For further information, please check our “downloads” tab.
Carton Weight 67 lbs
UPS Weight 195 lbs
Arms Optional
Weight Capacity 300 lbs
ED-OM5-XT
Overall Width 28"
Overall Height 40.5 - 45.5"
Back 18" W x 24.5" H
Seat 19.75" W x 21" D (20" D Back Upholstery)
Seat Height 19 -24"
COM Back = 1 yards Seat= 1 yards
Carton Weight 69 lbs
UPS Weight 195 lbs
Arms Optional
Warranty Lifetime limited warranty on all structural components and 5-year warranty on fabrics & foam. For further information, please check our “downloads” tab.
Weight Capacity 300 lbs

Review this product

OM5 Gaming Chair ED-GM-5CH Mid-Back Ergonomic Task Chair

Great meeting point between functionality, professionalism, and flair., Aug 20, 2018
by Ebli De La Rosa Jr, Orlando, Florida
I bought this chair to serve as my desk chair for my gaming PC. I basically went all black with red as the seat (I believe I did molten but dont quote me on it). The chair is smooth over the tile of my home, I never get hot in it like I do with leather chairs (especially anywhere direct skin to chair contact happens). The height adjustment works great, and the mechanism that allows you to lean the chair back just by using your weight is easy to get used to, and works amazingly. The back is quite wide, wide enough for my entire back (I am 5' 10" with a stocky frame), but not so wide the chair is huge. First chair I have owned of its kind but I would highly recommend it.
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A weak first impression, but an enduring love, Jun 30, 2018
by John W., Vermont
Compared to chairs you'll find at most office supply stores, the OM5's padding feels thin, firm, and oddly sculpted. The odds are decent you'll find it inferior or even mildly uncomfortable for the first 15 minutes after you sit down.

However, after you've sat in them for several hours, those store-sold chairs that make such great, pillowy first impressions have worn out their welcome and left your back in knots. Conversely, the OM5's sculpted and rather firm seat pushes your butt into a position that encourages correct posture, and the hands-free reclining allows the chair to continue fully supporting your back even as you adjust or stretch, both are things you'll come to appreciate by the end of the day.

The seat may take some getting used to and feel mildly uncomfortable or strange at first, but give it a chance at prolonged use. My first work shift spent in the OM5 was the first time in years that I didn't leave work with back and shoulder pain.

In terms of drawbacks, there's the somewhat underwhelming first impression I already mentioned. The price for the OM5 is also certainly of note, especially since I consider the headrest and adjustable armrests as must-have upgrades. The chair also arrived with a decidedly unpleasant plastic or chemical odor that took approximately a week to fade. At 6'0" I'm also not sure whether the OM5-EX can really accommodate people several inches taller than I am, but perhaps I just have a proportionately longer torso and neck.

Overall, the OM5 is a great chair, and something I wish I'd purchased over a year ago when I first began looking into them.
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Worth the money and the extra effort to customize!, Jun 9, 2018
by John D, Idalou, Texas
My wife and I are so glad we did our research and, finally, decided on the OM5. She teaches online classes and needed a chair that would really work. The lean-back (wow!) feature allows both of us to adjust/change our positions which reduces fatigue and back twinges. The ability to easily adjust the front of the seat is unique and we use it more than we thought we would. My wife found the ordering process to be perfectly detailed and worth her time - I left her to it when I realized it wouldn't show me what I was 'building.' She selected the leather seat covering and they turned out very classy.

Putting the chairs together was evidently easy since my wife didn't wait for me to help her. Little details, like the 'handle' on the back to pull the chair out were pleasant surprises and has added value to these already impressive chairs. Although we're not gamers, we do spend a lot of our time working at our desks and these chairs are perfect for hours-at-a-time sessions.
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Almost perfect, May 12, 2018
by Liam H, Toronto, Ontario
Once you get used to the way the chair reacts to your weight it functions flawlessly. The waterfall lip is a feature I never knew I wanted but now I have to stop myself from constantly messing with it. I've put in more than a couple long days into it and I only appreciate it more the longer I'll I use the chair for.
The only real problem I have is the arms, I wish they were longer or somehow followed the chair when you leave back in it.

All in all 0 regrets, great buy.
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Love this chair!, Apr 26, 2018
by Michael, Franklin, Tennessee
This is a great chair. Love the upgraded fabric. Would highly recommend upgrading the fabric. Very comfortable and keeps my back straight and healthy.
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Great chair but, Feb 2, 2018
by Jamison, ND
Everything about the chair is pretty great, outstanding craftmanship, quality materials, easy assembly, it looks great with all the options available and most importantly very little adjustment needed for optimum comfort. Only gripe though is when you lean back your body moves forward with the seat, while a lot of that resistance to hold the backrest in position is held back by the friction of your pants and the material on the seat (standard material-that is very rough feeling by the way) which can be uncomfortable at times which is as easy as just standing up and readjusting yourself to alleviate the issue. All in all I would still recommend the chair one year later even with the one flaw that is just a byproduct of not having to ever manually adjust the chair.
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Perfect chair for long hours, Jun 19, 2017
by W. Clark, Nashville, Tennessee
I purchased this chair for my home office. I often work 8+ hour days and I am also a PC gamer in my spare time. I upgraded from a cheap Staples chair because I was beginning to have back pain and this was well reviewed online. I must say, even with the $300+ in extras on top of the base price, I feel like I got a great bargain. My back pain is completely gone after 3 weeks of this chair! On top of that, I had no idea how comfortable a chair could be before I bought this thing. If you are on the fence, go for it. You will not be disappointed. It works just exactly as described: it automatically adjusts to your desired position and stays until you want it to move. Everything about it screams premium. This should be priority for anyone who spends serious time in front of a computer because it will greatly and immediately improve your quality of life.
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Great chair, May 4, 2017
by C Morrison, College Station, Texas
This is a very comfortable chair, one of the only chairs I can sit in for longer than 30 minutes without pain. Be aware though that the charcoal color is NOT black, it's a grey.
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High Quality Product, Jan 31, 2017
by Michael M, San Diego, California
Awesome chair for a big guy like me as it's hard to find a chair that is comfortable and wont hurt my back in the long term. Assembly was easy and customer service got back to me quickly with questions I had. Really nice chair to sit in!
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A taller gentleman's opinion..., Jan 20, 2017
by Dev, New York
I have been using my OM5-EX for a couple of months now, and I love it! This is a sturdy chair constructed from durable material- even the plastic/nylon feels built to last! I am 6'4", medium build, and went for the heavy duty 6" cylinder. I probably would have been fine with the standard 5" (adjusted to it's upper height, of course), but my current configuration works just fine. I feel that I am right at the height threshold for this chair; if you are 6'6+, you may be better off going for the XT model. Be aware of various measurements (seat depth, seat height), as that will ultimately help you determine what's best for you- I used a tape measure on myself, as well as chairs around my home.

Finally, I didn't opt for the memory foam seating, and I feel just fine. Your preferences may differ from my own.

Great chair, no significant complaints!
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I'm tall and genuinely enjoy sitting in this chair., Dec 22, 2016
by D3, Bronx
I am 6'4 and was nervous about ordering an essentially non-returnable chair (sight unseen to boot), but the initial anxiety was entirely worth it. This chair is extremely comfortable and sturdy, even the plastic/nylon feels solid. Considering my height, I opted for the 6" cylinder. I could have possibly gotten away with the standard shaft (set nearer to it's upper limits), but this configuration suits me just fine.
If you are taller than 6'4" you may want to consider the "XT" model with the deeper seat, I feel like I'm right on the border.
*note: I did not opt for the memory foam and the seat is still quite comfortable.
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Best chair I've ever sat in, and the customer service of ErgoDirect is top notch!, Nov 18, 2016
by Matthew, California
I don't write many reviews online for products. I usually will only do that if it's something that is ridiculously impressive or ridiculously bad. I'm happy to say that this chair is on the ridiculously impressive scale. I had been searching for a new chair for my home office/gaming computer setup for a LONG time. At first, I was looking at some pretty cheap chairs and then, as I read reviews, I kept finding a great amount of problems with those chairs. I decided to up my budget a bit and looked into some mid to higher-end chairs which is where the OM5 comes into play. This is the one chair that kept getting consistently good ratings everywhere I looked, and reading PC Gamers' review of the chair had me take a hard look at it.

Let me first say, there are A LOT of options on the website and I feel that they need to provide you an example what your chair may look like before purchasing it online. This isn't a cheap chair when you start getting some of the add-ons, and because of that I think that customer should see a sample of what they're getting before they receive it. Besides that, I will say I had a really great experience with this company. I live near their HQ and the owner of the company accommodated me coming by on a Saturday to quickly test out the chair and determine if I wanted to get it. The second I sat in it, I knew it was what I wanted. Luckily, in person they have actual cloth samples for the different options so that made a HUGE difference in my selection.

Onto the chair, though. The chair is seriously the best I've sat on. I was coming from a really really old and crappy leather chair but I've also used Herman Miller and Steelcase chairs at work. While those other high-end chairs are great, I'd have to say I prefer this chair in EVERY way. The self-adjusting back mechanism ACTUALLY works as advertised. I feel supported no matter how far I go back in the chair. It's kind of an odd feeling but just really cool at the same time. In terms of the options, I know I had a lot of questions that I think I can help answer in this review. First of all, I'm 5'11" and around 175lbs. The EX is GREAT for this height and above. I think my biggest question prior to purchasing was whether I should get the mid-back or the high back and after sitting in it I knew the high back was the only answer. I also got the memory foam upgrade & the locking armrests. I think the memory foam upgrade is fantastic and, maybe even required for the best comfort. The locking armrests are good but, honestly, you could probably get away with the regular ones, no upgrades.

In summary, BUY THIS CHAIR. You won't regret it.
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Truly Comfortable chair, Oct 20, 2016
by Karen M, Laguna Beach, California
Easy to put together; exceedingly comfortable chair. Loved the options to customize just what my son wanted. Considering getting one for myself given the price point, comfort level and helpful sales force from start to finish!
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Great chair, Oct 12, 2016
by David M, Chicago, Illinois
Get a lot of compliments regarding its look and how comfortable it is!
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Not for large people, Aug 28, 2016
by Matt A, Oregon
Do not recommend this chair if you're over 250lbs. The padding isn't strong enough and it feels like your sitting on the seat pan which will dig into your legs due to the curved shape. The back and seat slider for the recline feature are excellent and great for the back. If it weren't for the seat it would be a perfect chair
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Excellent ergonomic choice for home office and PC gaming, Jun 16, 2016
by buttmancer, Canton, Georgia
I purchased this chair on recommendation from PC Gamer magazine. I recently started working from home full time and I also play PC games, so I initially looked at so-called "gaming chairs" such as DXracer. Most reviews of those claimed lack of durability or sustained comfort throughout the day. Most reviews actually recommended getting an ergonomic office chair instead, and PC Gamer Magazine specifically recommended the Office Master OM5. While I had the budget to pick something like a Herman Miller, the simplicity and sheer customizability of the OM5 were what made me go with it.

It provides incredible back support (as I try to sit at a 135 degree angle) and is very comfortable. It is not more complicated than it has to be. I also customized it to match the color theme I already established with my PC and other peripherals (black primary and blue secondary).

This is much better than any $50 office chair you could get, blows "gaming" chairs out of the water, and gives Herman Miller a run for their money.
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Super Comfortable Chair, Apr 27, 2016
by Jason L, Washington
This chair is extremely comfortable. The self adjusting back works really well, supporting your back and bottom as both the back and seat adjusts to your leaning. For me and my weight, 162, it doesn't activate too easily so far. It's got just the right amount of resistance. The cushion was a little too hard at first, but after sitting in it for a month now it has softened up to a very comfortable level. I purchased the memory foam extra. I think it was worth it. This chair has completely fixed the problems I had with an Aeron chair I returned, namely the no cushion seating. The lumbar support is just about perfect for my height, 5' 8". It's also extremely well built, sturdy, and easy to put together. The adjustable arms are also nice and they don't slide back and forth too easily. Just the right amount of cushion too. They don't hurt my elbows. My only negative is that sometimes it wobbles a tiny bit, seemingly at the hydraulic stem. Depending on my sitting position though, I hardly notice it. If your leaning back a lot I would consider getting the higher back, especially if you're taller, as I missed the extra support on my shoulders when leaning back for a while. Was nervous because of the no return policy, but it was super worth it. Awesome chair.
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Love it!, Apr 16, 2016
by Austin, Florida
I been using the chair for about a week and I absolutely love it! The wheels glide across the floor with ease and I really like the seat itself. I went with the extra memory foam option and it seems to pay off well. Warranty for the chair seems fair and if I get 5-10 years out of it that would be excellent.

ErgoDirect customer support was excellent! I worked with Anthony M. and he helped me every step of the way and answered all my questions with great detail. He provided me fabric samples and feedback from the manufacturer to help me make the best choices for this chair. He went above and beyond as far as customer service goes.
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Comfortable chair, quality product. Ergonomic., Mar 22, 2016
by Nicole, Massachusetts
I was hesitant to buy due to it being non refundable but after reading reviews and watching video reviews helped me decide. Also my husband bought one before me. It really helps you sit up straight, and comfortably. I've had tailbone pain prior to the chair and the way it helps you sit up correctly and the design of the seat tapering just a bit in the back I'm no longer sitting on my tailbone the wrong way so it's helped the pain go away. No need for one of those C shaped cushions with this chair.
Also I'm 5'3" and so I didn't get the XL (not sure the exact name, but I did not get the larger size) and it's perfect for my height. My husband got the large chair and it's too big for my height- can't sit all the way back properly in that size. He is 6'1" and the large is perfect for him but he does like my smaller version of the chair, but felt since the seat was smaller that the underside of his legs were uncomfortable hanging over. So size choice is important for your height.
We got "Cats" color fabric (I believe- it's a dark grey) and it's nice, not "computer chair" looking at all. Definitely stain/water resistant as my husband spilled coffee on his accidentally. Comfortable and sturdy. We got adjustable arm rests and we like them, nice to have. I don't think I'll use the adjustable feature pivoting them but still, nice to have.
Very happy with the chair. I work from home and use the chair often after hours for my own projects so both of us use them a lot. The paper coming with it says standard 40 hour work week. Take lots of breaks no matter what. But comfortable for the long run if it's what you need.
I hope this review is helpful.
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Great Product, Feb 26, 2016
by Jane T, Texas
I gave this chair to my boyfriend as a gift. He is a big gamer so sits in his computer chair for hours at a time. He LOVES the chair. He has raved about the back support and the comfort of the seat. Great purchase.
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Can't decide..., Dec 23, 2015
by Jeffrey, Georgia
I purchased this chair after watching numerous videos on gaming chairs and decided to try it. What I love about it is that the seat slides forward as the back of the chair reclines, this makes it super comfortable to lean back a little. What I hate about it is that the act of leaning back is just a bit too easy and there's no way to adjust this. In other words, what would make this chair perfect, is if there was a way to increase the resistance on the leaning back action. Otherwise, it's very comfortable and solved the issue I had were my thighs & buttocks were going numb during long work (or gaming) sessions. It's an expensive chair but has the quality to go along with it.
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The single greatest purchase of the last decade - OM5-XT, Dec 21, 2015
by Michael Z., Florida
Where to begin?

The ordering process was incredibly simple, straight-forward, and plenty of reference. The contact at Ergodirect was nice, updated me periodically for my order as there was some delay, but oh, the wait was worth it. This is without a doubt the best chair I have ever sat in. Posture is already beginning to improve in the first few hours of owning it, the building process was literally three pieces, and the box it came in was sturdy, heavy, and huge. REALLY huge. Carrying that up a flight of stairs was a challenge, but all of it was worth it. Compared to the Steelcase Leap v2, Ikea Markus, an old $80 Office-Max cloth chair, and the DXRacer D-Series; this is a league above them all. The price is justified, and it feels like it'll last many, many years to come and with an improvement to my back and coccyx health. A note on the Steelcase Leap - it is a very nice chair, but pressure wise in regards to the cushioning placed a lot of unneeded pressure on the coccyx bone, the OM5XT has no issues in that regard what-so-ever.

Highly recommended, and highly comfortable. Also the white leather and white backing is stunning to look at.

All future office and chair purchases will be going through Ergodirect. It was an absolute pleasure.
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Very simple to assemble!, Nov 11, 2015
by Scott
The packaging was a bit extreme (the box was way to large for the contents inside the box. Assembly was very simple. No complaints yet.
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Your spine will thank you, Nov 9, 2015
by Carl C, Colorado
I'm not a chair expert by any means so I will just list what I liked and do not like.
Likes:
-Helps me sit up straight more
-is very easy to lounge back in
-arm rests are very comfortable and adjustable if you get the nice ones
-overall very supportive and does cause any weird tense spots in my back, neck, or shoulders

One note is that I was concerned that the lack of a cushioned back (on my customized version) would make the seat uncomfortable, but the plastic flex back has plenty of give and is actually very comfortable. And breathable too!

Things I don't like:
- lack of height adjustment for the back. I get that the chair is all about not needing adjustments, but I feel like my tail bone just barely makes it up to the flex back and a shorter person would have a bad time.
-A lot of the features you'd probably want (like the arm rests) are not stock and cost extra
-Pretty expensive
-I still haven't found much use for the "waterfall lip"
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Best chair, Nov 4, 2015
by Thomas K, Texas
This is legitimately the best chair I've ever sat in. It completely supports me while at the same time being very comfortable and able to lean. With the ridiculously easy instillation, I could not recommend it higher.
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Highly satisfactory, Oct 29, 2015
by Dillon S, Nebraska
I was a little overwhelmed by the choices in fabrics when designing the chair myself, it would've been nice to see example photos of similar chairs (where available) to demonstrate each fabric or frame choice.

That aside, I got the chair, undamaged. Assembly was easy (just put the chair on the stand) and I was sitting in the chair within 5 minutes. I use this chair at a computer both for work, watching of streamed video (TV style usage), as well as gaming. The automatic reclining and highly adjustable arms make switching modes really comfortable and easy.

Obviously, this chair (especially with all its additional options) is quite expensive, but this feels like a chair I'll probably be using for 10 years, so I don't mind the expense. The only downside is that I have this chair in my home office, but I have to sit in a 'normal' chair while I'm at work. I guess until we have a Jetson's style ability to shrink things and take them with us, I'll just have to deal ;)
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Very good all around chair, Oct 14, 2015
by Alex, TN
I believe this is the most comfortable chair that I have ever sat in. It takes out all the adjustment and does it for you. Easily worth the price and works great with my gaming set-up/also for productivity.
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Best Chair I've owned, Sep 2, 2015
by Kevin D, Massachusetts
I spend a lot of time working from home and this is a great all around office chair. It's also very comfortable when playing games. The back and seat are connected in a way that as you move, the base moves with you. It's extremely comfortable. Highly recommended.
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Very Comfortable, Sep 1, 2015
by Geoffrey W, Washington
This chair is perfect. It takes some time to get used to but it's fantastic, especially for long gaming sessions. It moves with you so your always getting the support you need, and not fighting to get comfortable.
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An excellent chair for tall dudes., Aug 27, 2015
by Shauvon M, Kentucky
I was, as you might imagine, very nervous about buying this chair. Can you blame me? Who would throw down 600 clams for a chair that you can't try out and can't return if you don't like it? On top of that, I was looking at the "big and tall" version (the BXT, which I can only assume stands for Big Xylophone Time, and that doesn't really make any sense). The non-standard chair meant that any reviews or acclaim that the "default" chair received might not necessarily apply, or might be completely irrelevant if the BXT version just didn't fit right. I'm a very tall and thin dude, and that is a huge problem in my life. I don't really need to get into specifics (but suffice it to say I hate pants, beds, doorways, and ceiling fans). The point is that "big and tall" usually means just that - Big *and* Tall, so when shopping for things like office chairs (or pants), I can't just get a chair for a tall guy - it has to be one for a tall, fat guy. Now, I don't want to throw shade on the big guys out there, but it's a bit frustrating when I have to custom order pants that still have stretchy maternity panels in them because they're for a gentleman of the "Goodyear" persuasion, when I struggle to register as "Telephone Pole." So when I was looking to finally replace the old and busted chair that I've been sitting on since I was in the eighth grade (which was a long, long time ago), I was worried that I was going to have to pay extra for a chair with all manner of reinforcing girders, louvers, flying buttresses, and other modern engineering marvels because it was designed to hold a man who is, for lack of a better term, worth *several* of me. All this trouble, and I will still end up with a chair that isn't designed for me, which means that $600 investment wouldn't rescue me from the land of Back Pain. Still, I was getting very tired of living with my back and butt hurting all the time, and it was getting pretty dumb that I spent easily two thirds of every day sitting in a really terrible chair. I went out on a limb, pulled the trigger, and committed to several other metaphors while ErgoDirect got my chair shipped off to me. I'll dispense with the minutia, because the specific details of this chair are pretty well covered by the various extensive reviews of this chair (or it's smaller brother designed for puny men and their *normal* body types). I will shoot right to the point (finally) and say that I haven't had any back problems since I started using this chair. It has the longest platform (is that the term? It's the part where your butt goes) of any chair probably ever, so if you have stupidly long legs it will serve you well. The cheaper back option with the hard plastic is not super comfortable, but it could be worse. The arms are, well, arms - there's nothing special about them really at all, but there's nothing bad about them, either. Despite my fears, there are no flying buttresses to be found, so at least it is not obviously for a fat guy. If you are tall and doing a lot of hemming and hawing about whether to buy this chair - haw no further. I can't fathom that you will be disappointed. My one complaint is that it apparently is really fun for cats to puke on, but that's more a complaint about my horrible, stupid, useless monster of a cat, and not this chair. Even with the hairball stain it's still comfortable.
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Most comfortable chair I've ever sat in, Apr 16, 2015
by Nathan H, Illinois
The lower back support is the best I've ever felt in a chair. It's perfect. Maintaining proper posture feels completely natural. Would recommend to anyone who sits at a desk for the majority of the day. It's an expensive chair, but absolutely worth it.
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Office use, Mar 24, 2015
by Darren P, Tennessee
Professional modern appearance for my medical office while providing comfort,fatigue free posture and effortless positioning.
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