Sihoo M57 Ergonomic Office Chair with Breathable Mesh Cushion
Benefits
Benefits
- Supports up to 330 lbs
- 3D adjustable armrests for versatile comfort
- Adjustable lumbar support for personalized lower back support
- Fully breathable mesh design to keep you cool
- Streamlined backrest for full back comfort
- Reclines up to 126° for comfortable relaxation
- Certified by BIFMA and SGS for quality and durability
- Endorsed by Creativebloq, TechRadar, ExpertReviews, and more as a top budget-friendly ergonomic chair
Promises
Promises
- 30-Day Free Returns.: Try the chair for 30 days. If it’s not for you, feel free to return it.
- 3-Year Warranty: Enjoy lasting comfort and peace of mind with our 3-year warranty.
- Free Shipping: Receive your chair in just 5-7 days, in US and CA.
- Satisfaction Guarantee: For any issues, contact support_us@sihoo.com for prompt assistance and guaranteed satisfaction.
Payment methods
Your payment information is processed securely and the price includes regional tax.
How to choose a right ergonomic office chair?
Check out our buying guide for you!
Stay Cool, Stay Comfortable: The Sihoo M57's full mesh construction ensures superior airflow, keeping you cool and preventing sweat and discomfort even in hot weather.
Breathable Mesh Design: A full mesh design that promotes air circulation and keeps you comfortable throughout the day.
Contoured Backrest: The seat back contours to your spine, maintaining a natural "S" shape for optimal back support from top to bottom.
3D Adjustable Armrests: Adjust the armrests in three directions—up and down, back and forth, and rotating—to provide customizable arm and shoulder support.
Dual-Adjustable Lumbar Support: The lumbar support can be adjusted both vertically and horizontally, offering personalized lower back comfort for different postures.
Generous Recline Angle: Recline up to 126° for a relaxing break. The recline function allows you to lean back, relax, and recharge effortlessly.
Customizable Headrest: The headrest adjusts vertically up to 3.9 inches and rotates 45 degrees, fitting your neck curvature for optimal support whether you're sitting upright or reclining.
Effortless Adjustments: Easily adjust seat height and recline angle using the conveniently placed handle for personalized comfort.
Built for Durability: Featuring a steel gas lift, aluminum alloy legs, and other high-quality components, Sihoo M57 is designed for long-lasting comfort and support.
1. What makes the Sihoo M57 stand out?
The Sihoo M57 features a full mesh design that promotes superior airflow, ensuring you stay cool and comfortable even in hot weather. It also includes dual-adjustable lumbar support and 3D adjustable armrests for personalized ergonomic support.
2. How does the full mesh design benefit me?
The full mesh backrest and seat provide optimal airflow, preventing sweat and discomfort during long sitting periods. This is ideal for warm environments or extended workdays.
3. Can I adjust the lumbar support?
Yes, the M57 features dual-adjustable lumbar support, allowing you to adjust both vertically and horizontally to fit your spine’s natural curve, providing continuous lower back comfort throughout the day.
4. How does the M57 compare to the M18?
- M57: Full mesh construction for maximum airflow and cooling, contoured backrest for "S" shaped spinal support, 3D adjustable armrests, and up to 126° recline.
- M18: Soft sponge cushion for cozy seating, breathable mesh back, height-adjustable armrests, and also reclines up to 126°. The M18 is more suited for users who prefer a cushioned seat, while the M57 is perfect for those who prioritize airflow and cooling.
5. How does the M57 compare to the C300 and S100?
- C300: The C300 features a spine-inspired backrest and 4D adjustable armrests. It is better for gamers or coders who frequently change positions. The recline is limited to 112°, compared to the M57's 126°.
- S100: The S100 has dual lumbar support, similar to the M57, but offers a greater recline angle of 135° and a more modern design. It’s great for users seeking deep recline and extensive shoulder and back support, while the M57 focuses more on cooling and airflow.
6. How do I choose between the M18, M57, C300, and S100?
- Choose the M57 if you need a full mesh design for superior cooling and adjustable lumbar support.
- Choose the M18 if you prefer a cushioned seat with breathable mesh on the back only and adjustable lumbar support for everyday comfort.
- Choose the C300 if you need spine-inspired design and versatility for both gaming and office tasks with adaptive posture support.
- Choose the S100 if you prioritize deep lumbar support, a larger recline angle, and a modern design for both work and relaxation.
7. What is the recline range of the M57?
The M57 reclines up to 126°, allowing you to comfortably relax during breaks.
8. What’s the return and exchange policy for the M57?
We offer a 30-Day Worry-Free Trial, so you can try the M57 at home. If it doesn’t meet your needs, return it hassle-free. Additionally, you get a 3-year warranty for peace of mind.
Loved by our community
M57 is comfortable to sit on, whether that's for a couple hours or more a proper marathon work slog. It's functional and keeps you upright in a comfy way. And I suppose that's sort of perfect given it's a work chair.
A quick turn of the wheel behind the chair can lessen or deepen the intensity, and I’ve found that when working, the soft retention against my spine keeps me comfortably upright.
If your budget can’t stretch to the higher one, consider M57 fully adjustable ergonomic chair by Sihoo, it comes with a remarkable array of adjustable features and it is great for plenty of adjustments and breathable mesh.
"Enhance your posture, relieve your stress—sit well and think better."
How M57 Chair Helps?
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Backrest curves with your spine
Sihoo M57's sleek, streamlined backrest supports your entire back, keeping it in a natural, comfortable "S" curve from top to bottom.
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Recline smoothly with ease
Take a break and kick back in the Sihoo M57, with a generous 126° recline angle that helps you relax and recharge for your next task.
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Adjustable lower back support
Lumbar support adjusts in two directions, vertically and horizontally, to fit your lower back and keep you comfortable in any sitting position.
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Adjustable head support
Adjust the headrest up to 3.9'', and tilt it 45° to fit your neck, easing neck pain and supporting your head whether sitting or reclining.
Comfort, Control, and Durability
3D Armrests for Full Support
Easy Adjustments at Fingertips
Built for Last (BIFMA & SGS)
Specifications
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Chair back lifting height: 42.13" - 48.43"
Seat depth: 18.11"
Max hip width: 20.08"
Maximum load: 330 lbs
Armrests: 3D coordinated armrests (Up and down, left, right, forward and backward)
- JJoe_Pro21Rated 5 out of 5 starsMay 17, 2026Best Chair I've ever owned
I was gifted this chair in February 2024, and it's over 2 years old. Amazing spinal and headrest support during long sitting sessions. comfortable and breathable material that doesn't make you sweat at all. The adjustable armrests are great; they turn and move wherever you'd like. The chair's metal base is very strong and can support a lot of weight. Easy Assembly when building this chair, and it includes all the tools needed to assemble the chair.
- KBKenneth B.Verified BuyerRated 5 out of 5 starsApril 16, 20265 Stars
I bought the M57 for my home office after using a dining chair for almost a year. The difference was immediate. I am 5 ft 8 and around 165 lbs, and the chair fits me well without feeling oversized. The mesh seat is firmer than a cushion, but in a good way. It does not sink, and I feel like my posture stays more upright through the day. The lumbar support took a couple of days to get used to because it is more noticeable than my previous chair, but now I actually like it. Assembly took around 40 minutes by myself. A second person would have made attaching the backrest easier, but it was still manageable. The headrest is useful when I lean back for breaks, and the armrests line up well with my desk. Overall, this feels like a very solid chair for daily work.
- LDLien D.Verified BuyerRated 5 out of 5 starsApril 15, 20265 Stars
I replaced a gaming chair with the M57 and wish I had done it earlier. The gaming chair looked nice but pushed my shoulders forward and got extremely hot. The M57 feels more open and supportive. The mesh back allows air through, the lumbar support is in the right place, and the seat does not feel cheap. The recline is comfortable for short breaks, although I would not call it a nap chair. It is clearly made more for productivity and posture than lounging. That is exactly what I needed.
- OSOsama S.Verified BuyerRated 5 out of 5 starsApril 13, 20265 Stars
I rarely leave reviews, but this chair deserves one. I had lower back discomfort from sitting on a cheap padded chair for long hours. After switching to the M57, I noticed that I was not shifting around as much during work. The chair encourages a better sitting position without feeling like a medical chair. I like the adjustable headrest and the recline for short breaks. The mesh feels durable and supportive. It was packed well, with all tools included. I assembled it alone in about 50 minutes. The only annoying part was holding the backrest in place while tightening the screws. Once assembled, it feels solid and stable. I would recommend it to anyone working from home.
- KHKatharine H.Verified BuyerRated 5 out of 5 starsApril 13, 20265 Stars
I use this chair for work and gaming, usually 8 to 10 hours a day. The best part is definitely the mesh. My old faux leather chair looked nice at first but got hot very quickly and started peeling after about a year. The M57 feels much better for long sitting, especially in warm weather. The back support is firm, but it keeps me from slouching. I also like that the headrest can be adjusted enough to support my neck when I recline. The chair is not perfect. The armrests are a little hard, and the assembly instructions could be clearer in a few steps. But once everything is together, it feels stable, quiet, and much more ergonomic than most chairs in this price range. I would buy it again.