SIHOO M18 Ergonomic Office Chair, High Back Mesh Desk Chair with Adjustable Headrest & Lumbar Support, Computer Chair with 2D Armrests & Wide Cushion, Tilt Lock, for Home Office 330lbs Capacity Black

Price: $199.99 - $169.99
(as of Jul 10, 2026 15:19:27 UTC – Details)
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Product description

1 Full Support 2 Lumbar Support

1 More Comfortable 2 Premium Material

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. M18 ergonomic office chair

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Customer Reviews

4.4 out of 5 stars 16,729

4.2 out of 5 stars 3,489

3.4 out of 5 stars 12

3.5 out of 5 stars 8

4.2 out of 5 stars 455

4.2 out of 5 stars 1,313

4.4 out of 5 stars 7,981

Price

$139.99$139.99

$159.99$159.99

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$199.99$199.99

$399.99$399.99

$199.99$199.99

Headrest Type

2D

2D

3D

3D

3D

3D

2D

Armrest Type

2D

2D

8D

4D

3D

3D

3D

Recline Angle

108°-118°-128°

110°-125°-135°

105°-125°-135°

110°-125°-135°

110°-125°

92°-100°-112°

90°-116°-126°

Lumbar Support

2D

Dynamic Lumbar Support

Self-Adaptive Support 2.0

Dynamic Lumbar Support

Dynamic Lumbar Support

Dynamic Lumbar Support

2D

Seat Width

51cm（20″）

50 cm (20″)

52 cm(21″)

50 cm (20″)

51cm（20″）

51 cm（20″）

51 cm（20″）

Seat Depth

45 cm（18”）

43.5 cm (17″)

43-47 cm(17”-19″)

43.5 cm (17″)

43.5cm（17”）

42 cm (17″)

46 cm (18″)

Backrest Height Adjustment

/

/

SyncroFlex Backrest

/

/

4-segment adjustment

/

Seat Height

44-54 cm（17”-21”）

44-54 cm (17″-21″)

44.5-53 cm（18″-21″)

44-54 cm (17″-21″)

46-56 cm（18″-22″）

41-49.5 cm（16″-19″）

46-55 cm（18″-22″）

Overall height

109-127 cm（43”-50”）

109-127 cm (43″-50″)

109-130cm(43”-51″)

109-127 cm (42.9″-50″)

113-135 cm(44″-53″)

107-128 cm (42″-51″)

107-123 cm (42″-49″)

Service

3 Years

3 Years

3 Years

3 Years

3 Years

3 Years

3 Years

【ERGONOMICE OFFICE CHAIR】- The ergonomic chair provides 4 support points (head/back/hip/hands) and proper lumbar support. SIHOO designs ergonomic chairs to meet different needs, with seat height, headrest adjustment, lumbar support and back support adjustment, suitable for long sitting and reduce your pain. Suitable for people 5’6″ to 6’2″ tall.
【For Home and Work】 SIHOO chairs can be applied in different scenarios according to the needs of different consumers in needs. Can be used as student office chairs, computer chairs, ergonomic chairs, desk chairs, gaming chairs; not only can sit comfortably, but also save money;
【Breathable Mesh】 Mesh Office Chair Premium Backrest features flexible non-pattern mesh fabric while keeping your back cool and comfortable, allowing you to sit focused and relaxed at the same time.
【High Quality & Easy Assembly】This home office desk chair passed the BIFMA test and the 1136kg static pressure test. Our ergonomic office chair can support up to 150kg. Simple instructions allow anyone to put the chair together in eight easy steps.
【Satisfaction Guaranteed】Customer satisfaction is our first priority. Free returns and refunds within 30 days if the SIHOO office chair is faulty or if there are any other quality-related issues. We promise to provide free replacement parts during the 3-year warranty period. If you encounter any problems, please contact us and we will do our best to find a satisfactory solution.