Sihoo Ergonomic Office Chair, Auto-Adaptive Lumbar Support, Adjustable Backrest, 3D Armrests, Mesh, Gray
Sihoo Ergonomic Office Chair, Auto-Adaptive Lumbar Support, Adjustable Backrest, 3D Armrests, Mesh, Gray
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Sihoo Ergonomic Office Chair, Auto-Adaptive Lumbar Support, Adjustable Backrest, 3D Armrests, Mesh, Gray

945 ratings
Sihoo Ergonomic Office Chair, Auto-Adaptive Lumbar Support, Adjustable Backrest, 3D Armrests, Mesh, GraySihoo Ergonomic Office Chair Auto Adaptive Lumbar Support Adjustable Backrest 3D Armrests Mesh GraySihoo Doro C300 Ergonomic Office Chair Headrest Lumbar Support Adjustable Backrest 3D Armrests Breathable Mesh Height Tilt Adjustment Black
Actual ColorGray

Key item features

  • Adaptive Lumbar: Features innovative Domino Auto-Adaptive Lumbar Support with a dynamic tracking system that adjusts to your back movements and offers four vertical height settings.
  • Adjustable Armrests: Equipped with 3D linkage armrests that adjust in three directions (up/down, back/forth, 75-degree pivot) and coordinate with the backrest during recline.
  • Flexible Backrest: The backrest is height-adjustable in four levels and can tilt at 110, 120, and 130 degrees for varied relaxation positions.
  • Intelligent Sensing: Includes an intelligent weight-sensing device that adapts to the user's weight for a balanced reclining experience.
  • Certified Quality: Holds 12 patents and meets European Union's REACH and EN1335 standards, German TUV certification, and US SGS BIFMA standards.
  • Comprehensive Support: Provides continuous support for the neck, lumbar, legs, and hands with an adjustable wide-angle headrest and breathable mesh fabric.
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Specs

Desk chair type, Office ChairsBrand, SihooColor, GraySeat height, 41.34 inSeat depth, 16.54 inSeat width, 20.08 in

About this item

Product details

The SIHOO Ergonomic Office Chair-Doro C300 A3 Auto-Adaptive Lumbar Support, 3D Linkage Armrests, Computer Desk Chair with 4-Position Adjustable Backrest, Mesh Office Chair for 300lbs, Gray is expertly designed to deliver unparalleled ergonomic comfort and support for long hours at your desk. Featuring innovative self-adaptive dynamic lumbar support, this chair conforms to your body movements, ensuring consistent back support. The intelligent weight-sensing chassis adapts effortlessly to users of varying weights, while the breathable mesh fabric and adjustable backrest enhance comfort. Ideal for professionals seeking a high-performance seating solution, the Doro C300 combines advanced engineering with Sihoo's commitment to ergonomic excellence.
  • 【Innovative Ergonomic Chair】The SIHOO Doro C300 ergonomic office chair integrates the most recent technology to provide you with continuous support in the neck, lumbar, leg, and hand regions. It is furnished with an adjustable wide angle headrest, adaptive lumbar support, 3D linkage armrest, an intelligent weight-sensing device, durable and silent chair wheels, a flexible backrest, and breathable mesh fabric, offering prolonged comfort even if you remain seated throughout the day.
  • 【Domino Auto-Adaptive Lumbar Support】Sihoo Doro C300 office chair's backrest employs an innovative dynamic tracking system that automatically adjusts the backrest to conform to your back as you shift your upper body, providing you with full support at all times. Additionally, the backrest of the home high-back office chair has four adjustable heights and can move vertically by 2.36 inches, suiting individuals of varying heights.
  • 【3D Linkage Armrests】The office chair's three-dimensional armrests can be adjusted in three directions not only adjust up and down, back and forth, and pivot 75, but also coordinate with the seatback when reclining, ideal for resting your arms in various positions while working. While resting in the SIHOO Doro C300 office chair, its Adaptive Lumbar Support naturally conforms to your body's contours, cradling your lower back to relieve pressure and promote comfortable relaxation.
  • 【Height-Adjustable Backrest】Moves vertically in 4 levels to suit your back(1/2/3/4st gear). The SIHOO Doro C300 desk chair can be tilted at 110°, 120°, and 130°, allowing you to relax and rest comfortably. Furthermore, this desk chair is equipped with an intelligent weight-sensing device that adapts to the user's weight while ensuring an effortless and balanced reclining experience.
  • 【Trust Worthy Quality】The SIHOO Doro C300 ergonomic office chair holds 12 patents, passes the European Union's REACH and EN1335 standards, and has received safety and quality certification from the German TUV. Our ergonomic office chair also complies with the US SGS BIFMA standard and is outfitted with an SGS-certified 4-stage pneumatic lift for enhanced durability and safety.
  • 【Warranty】Product warranty period is three years. If there is any quality problem, please contact us. After confirming, we will change the accessory for you. We promise to provide you with zero profit product accessories within three years of the warranty period.
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Specifications

Desk chair type

Office Chairs

Brand

Sihoo

Color

Gray

Seat height

41.34 in

Directions

Fabric Care Instructions

S-Solvent based cleaner - no water

Warranty

Warranty information

24-hour online service, 30-day free returns, 60-day free exchanges, and 1095-day warranty.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Customer ratings & reviews

4.4 out of 5 stars
stars
945 ratings706 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars72% (682)
  2. 4 stars13% (126)
  3. 3 stars6% (57)
  4. 2 stars3% (31)
  5. 1 star5% (49)

Reviews summary

Pros

  • : Setup takes minutes with clear instructions.
  • : Features a contemporary look with clean lines.
  • : Offers great value considering features and quality.
  • : Provides comfort during extended sitting periods.
  • : Offers lumbar adjustment for customizable comfort.

Neutral

  • : Can be tailored to fit, but with limitations in fine-tuning.
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Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 706 reviews

Jul 20, 2026
Reviewer name: Oldtreeguy
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

nice chair.

THis,so far, is an excellent chair.

International review
Review from walmart.ca
Helpful?272AWVUAHKN4194981611
May 12, 2026
Reviewer name: Jeffrey R.
5 out of 5 stars
5 out of 5 stars review

I spend around ten hours a day in front of the computer between work and gaming. With my previous chair, I would constantly get up because my back and shoulders felt uncomfortable. Since switching to the C300, I can stay focused much longer. I particularly like how the backrest follows my movements instead of feeling rigid. This chair made a bigger difference than I expected.

Review from sihoooffice.com
Helpful?272AWVUAHKN4194981611
May 21, 2026
Reviewer name: Sage
5 out of 5 stars
5 out of 5 stars review

Time will tell how this chair lasts over the next year or two, but so far i'm very impressed with the lumbar support and flexibility of this chair. I specifically bought this chair because I am 5 ft 4 and it's hard to find economic chairs that have seats made for short femurs. I'm very impressed with the quality of the chair, considering the price. Thanks Sihoo!

Review from sihoooffice.com
Helpful?272AWVUAHKN4194981611
Current price is Now $309.99
You save $50.00
was $359.99
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