SIHOO M57 Ergonomic Mesh Office Chair, High Back Home Desk Chair with 3D Armrests, Lumbar Support and Adjustable Headrest, Comfortable Computer Chair, Big & Tall Office Chair Hold 330 LBS-Ebony

Price: $249.99
(as of Jun 28, 2026 16:41:10 UTC – Details)
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Product description

1 Buyer’s Show

2 Office Room

3 Home Office

4 Meeting Room

5 Gaming

SIHOO – Better Brands, More Choices

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Customer Reviews

4.4 out of 5 stars 8,028

4.1 out of 5 stars 3,508

4.2 out of 5 stars 30

4.1 out of 5 stars 3,508

4.4 out of 5 stars 16,693

4.3 out of 5 stars 443

4.2 out of 5 stars 1,294

Price

$249.99$249.99

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$449.99$449.99

$299.99$299.99

$139.99$139.99

$189.99$189.99

$299.99$299.99

Headrest Type

2D

2D

3D

3D

2D

3D

3D

Armrest Type

3D

2D

8D

4D

2D

3D

3D

Recline Angle

90°-116°-126°

110°-125°-135°

105°-125°-135°

110°-125°-135°

108°-118°-128°

110°-125°

92°-100°-112°

Lumbar Support

2D

Dynamic Lumbar Support

Self-Adaptive Support 2.0

Dynamic Lumbar Support

2D

Dynamic Lumbar Support

Dynamic Lumbar Support

Seat Width

51 cm (20.08″)

50 cm (20”)

52 cm(21″)

50 cm (20”)

51cm (20.08″)

51cm (20.08″）

51 cm (20″)

Seat Depth

46 cm (18.11″)

43.5 cm (17.1”)

43-47 cm(17”-19″)

43.5 cm (17.1”)

45 cm (17.91”)

43.5cm (17.12″)

42 cm (16.54″)

Backrest Height Adjustment

/

/

SyncroFlex Backrest

/

/

/

4-segment adjustment

Seat Height

46-55 cm (18.11″-21.65″)

44-54 cm (17.3”-21.3”)

44.5-53 cm (18″-21″)

44-54 cm (17.3”-21.3”)

44-54 cm (17.32”-21.26”)

46-56 cm (18.11″-22.04″)

41-49.5 cm (16.14″-19.49″)

Overall height

107-123 cm (42.12″-48.42″)

109-127 cm (42.9”-50.0”)

109-130cm(43″-51″)

109-127 cm (42.9”-50.0”)

109-127 cm (42.91”-50.00”)

113-134.5 cm (44.48″-52.95″)

107-128 cm (42.13″-50.40″)

Service

3 Years

3 Years

3 Years

3 Years

3 Years

3 Years

3 Years

ADJUSTS TO YOU, FROM BOTTOM TO TOP – Whether you’re working, gaming, or just relaxing, SIHOO ergonomic chair adapts to your needs. The headrest tilts and lifts to support your neck just right. The lumbar support shifts in height and depth to fit the curve of your lower back. Recline from 90° to 126° to change posture throughout the day. With smooth height lift and 360° swivel, you move freely and stay comfortable—however you sit.
ERGONOMIC SUPPORT WHERE YOU NEED IT MOST – Recommended by the Ergonomics Application Association, the SIHOO ergonomic office chair is shaped to match the natural curve of your spine. The split backrest cushions your back and helps relieve pressure along the spine. The waterfall-edge seat supports your thighs while improving circulation, keeping you comfortable through long hours at your desk.
STABLE, DURABLE, AND QUIET – Built with a reinforced aluminum base and a dual-frame backrest, our desk chair holds up to 330 lbs with ease, staying sturdy and supportive even with daily use. Smooth-rolling, silent casters glide across the floor without noise or scratches—perfect for quiet workspaces.
CERTIFIED SAFETY YOU CAN TRUST – Every key part of the SIHOO chair has undergone over 100,000 rigorous safety tests and is certified by BIFMA and SGS. Built with your safety in mind, it offers the confidence to sit, recline, and move freely—knowing your chair is tested, trusted, and made to last, perfect for long workdays, gaming sessions, or everyday comfort at home.
WARRANTY & SUPPORT YOU CAN COUNT ON – Every SIHOO office chair comes with a 3-year warranty and easy 30-day returns. If anything goes wrong, just contact our customer service—we’ll reply within 24 hours and send free replacement parts if needed. Your comfort and satisfaction are our top priorities.Your comfort and satisfaction are our top priorities.