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ProtoArc Ergonomic Office Chair, EC100 Big and Tall Mesh Computer Desk Chair with 30% Thicker Saddle Shaped Spring Cushion, Lumbar Support, Adjustable Headrest, Armrest for Home and Office - Gray

  • Based on 300 reviews
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Color: Grey


Features

  • Ergonomic Office ChairOur EC100 S-shaped dual-back ergonomic mesh office chair is meticulously designed to provide exceptional lumbar support for maximum comfort. The back support ensures optimal support in all positions. Latest 360 Even Pressure Technology Spring Cushion to alleviate uneven pressure on the hips. The headrest rotates 60 and adjusts by 2.75 inches. The 2D armrests adjust by 3.5 inches vertically for varying working environments, Those together ensuring a comfortable sitting experience
  • 360 Even Pressure Technology Spring CushionThe EC100 ergonomic chair features exclusive patented spring pressure cushion technology. The seat cushion is 30% thicker than standard cushions and incorporates 20 springs for increased softness. The saddle-shaped design effectively disperses pressure on your hips, resulting in a softer, more evenly distributed seating experience, guaranteeing comfort during long periods of sitting
  • Lumbar SupportTo provide enhanced lumbar support, the EC100 utilizes an independent adaptive lumbar support design. It is important to note that due to its adaptive nature, the lumbar support cannot be manually adjusted. The design ensures more robust lower back support compared to integrated backrests, reducing pressure by up to 50%. The adaptive lumbar support seamlessly adjusts its position in response to your body's movements, delivering uninterrupted support
  • Multifunctional AdjustabilityThe EC100 chair features a headrest that rotates 60 and adjusts by 2.75 inches, catering to users between 5.3 and 6.5 feet tall. The 2D armrests adjust by 3.5 inches vertically for varying working positions. It also includes a two-mode locking tilt mechanism at 90 and 130 angles for easy transition between work and leisure modes. The SGS-certified gas cylinder adjusts by 3.9 inches, suitable for individuals under 6.5 feet tall
  • Generous SizeIf you weigh between 90-280 pounds and stand between 5.3 and 6.5 feet tall, this computer chair offers a remarkably spacious seating area, providing ample room for movement and exceptional comfort. You can freely adjust and position yourself, enjoying a roomier sitting experience. If you are looking for a suitable chair for your home office, this home office chair with lumbar support is an excellent choice
  • After-sales ServiceIn regards to ProtoArc health office products, such as office desk chairs and electric standing desks, we provide a 3-year service commitment. If you're in search of furniture for your home office, ProtoArc is the best choice. We are dedicated to healthy office solutions and committed to enhancing productivity for users working from home

Brand: ProtoArc


Color: Grey


Product Dimensions: 20"D x 20"W x 46.75"H


Size: 5.3 - 6.5 feet tall/ 90-280 pounds


Back Style: Split Back


Brand: ProtoArc


Color: Grey


Product Dimensions: 20"D x 20"W x 46.75"H


Size: 5.3 - 6.5 feet tall/ 90-280 pounds


Back Style: Split Back


Special Feature: Adjustable Height, Adjustable Headrest, Arm Rest, Ergonomic, Adjustable Backrest


Unit Count: 1.0 Count


Recommended Uses For Product: Video Game, Office, Reading, Computer, Gaming


Maximum Weight Recommendation: 280 Pounds


Style: Modern


Pattern: Solid


Room Type: Office, Bedroom, Living Room, Classroom, Study Room


Age Range (Description): Adult


Included Components: Arm Pad, Cushion


Shape: S-Shape


Model Name: EC100


Arm Style: Track


Cartoon Character: Grey


Surface Recommendation: Hard Floor


Indoor/Outdoor Usage: Indoor


Seat Depth: 19.98 inches


Fill Material: Sponge


Cushion Style: Boxed Edge


Seat Length: 20 Inches


Tilting: Yes


Is Customizable: No


Is Foldable: No


Chair Backrest Width: 20 Inches


Form Factor: Recliner


Manufacturer: ProtoArc


Item Weight: 35.2 pounds


Country of Origin: China


Item model number: EC100


Date First Available: June 11, 2024


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Good Quality
Color: Grey
I ordered one of these chairs a few days ago and was delivered in good order without tears in the box, good quality box. Was able to put it together in 25 minutes without issue, good instructions provided. Quality is good, thick plastic on the bend point between seat and back, great lumbar support as I'm 6' 1" at 165lbs.. Very comfortable seat, much better than my previous mesh seat as it appears weight is more equally distributed. Only disadvantage is that there are only two locking positions for the back, one for straight up and one for fully reclined. For the price you cannot find a better value for an ergonomic chair. I work in this chair about 12 hours a day and I can tell you my back feels 400% better. I have ordered a second chair for my daughter whom is 5' 3" at 110lbs and also fits her perfectly. ... show more
Reviewed in the United States on February 13, 2025 by Amazon Customer

  • The best chairs!!!
Color: Green
20 minutes to assemble..easy instructions..most comfy chair..best chair
Reviewed in the United States on March 21, 2025 by Viliami sheffet

  • Lumbar support is low and not adjustable
Color: Grey
I am 5'6 and the lumbar support is too low and is not adjustable like other chairs. Could be more comfortable if the lumbar hit where I need support. Caution if this is what you are looking for.
Reviewed in the United States on October 25, 2024 by Carrie

  • Sits comfortably
Color: Grey
Sits comfortably and adjusts easily.
Reviewed in the United States on March 19, 2025 by Iya Foster

  • Nice seat cushion, but not as comfortable as I had hoped.
Color: Grey
I watched a video review that I swore was the same product, but it appears to just look identical. You can’t lock the mechanism for the back, you can only have it locked straight up, or unlock it and just lean back, and it takes effort to push it backwards. (Like a rocking chair) The piece that goes behind your lower back was uncomfortable, I ended up removing it and putting a small blanket there instead so my back doesn’t touch the plastic. Also you can’t rotate the arm rests, which was disappointing. The seat cushion is nice, though. Not exactly the product I hoped for, but it’s better than the broken chair I was using. ... show more
Reviewed in the United States on February 19, 2025 by Sound Theory

  • Husbands approve
Color: Grey
Husband loves this chair for his bad back
Reviewed in the United States on April 8, 2025 by deborah a. kudlik

  • This is a red chair
This red chair does several of the things that it is advertised to do; babies think they can climb on it but they cannot
Reviewed in the United States on March 28, 2025 by Rob

  • Lower back support protrudes too far
Color: Green
The lower lumbar support protrudes too far forward. It serves more as a reminder to get up frequently due to the chair being uncomfortable rather than being supportive. It either needs to be made adjustable or have the back support mellow out.
Reviewed in the United States on April 6, 2025 by Katie Apodaca

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