SIHOO M59AS Review: Comfortable, Clever, and Reliable

Last Updated on October 28, 2025 by Cassie Moorhead

If you’re searching for a chair that supports long work hours without breaking your back or your budget, this SIHOO M59AS review might be what you need. After using it daily for a few weeks, I can say it strikes the right balance between comfort, flexibility, and smart ergonomic design. As someone who spends most of the day writing and editing, I’ve tested plenty of chairs — and this one truly impressed me with its adaptive lumbar support and breathable mesh build. If you’re looking for an ergonomic office chair that actually feels built for real people, you’ll want to keep reading.

SIHOO M59AS Review

If you’ve been sitting long hours at your desk and your back’s starting to complain, the SIHOO M59AS ergonomic chair might just be what you need. I’ve been using it for a few weeks now, and it surprised me with how comfortable and adaptive it feels. It’s built for everyday work comfort — perfect for people who sit 6–8 hours a day, like me. I’m impressed by how it balances breathable mesh comfort and sturdy support without feeling bulky. Let’s talk about what stood out, what could be better, and how it compares to other chairs I’ve tried.

What I Like

• Breathable Mesh Comfort:
  The first thing I noticed was how cool it feels, even after hours of sitting. The mesh backrest lets air flow freely — great if you’re working in a warmer U.S. climate or don’t want your back to sweat during long Zoom calls.
• Adaptive Lumbar Support:
  The dynamic lumbar system actually moves with you. When I lean back or shift, I can feel the springs adjust to my lower back. It’s a big step up from fixed lumbar pads that feel rigid or misplaced.
• 3D Flip-Up Armrests:
  The armrests rotate and move in multiple directions — forward, back, up, down, and even flip away. That means I can play guitar, cross my legs, or type comfortably without restrictions.
• Dual Back Design for Real Spinal Support:
  The chair’s dual backrest structure feels like it hugs your spine. I noticed less tension in my shoulders after long editing sessions. It encourages a natural posture instead of forcing one.
• Quick Assembly:
  I had it ready in under 20 minutes. Everything was clearly labeled, and the tools were included. For U.S. buyers who prefer easy DIY setups, this is a plus.
• Strong Build and High Weight Capacity:
  It supports up to 330 lbs, which gives confidence in long-term durability. The base and frame feel solid, not flimsy like some chairs I’ve tried in this price range.

Summary: The M59AS blends ergonomic innovation and comfort beautifully. Its mesh, adaptive support, and flexible features make it ideal for both home offices and professional setups.

What Could Be Better

• Seat Cushion Firmness:
  While the saddle-shaped cushion helps with posture, it might feel firm during the first week. It softens slightly over time but could use a bit more plushness for all-day comfort.
• Armrest Padding:
  The 3D flip-up armrests are functional but could use thicker padding. If you rest your elbows for long periods, you might feel the firmness.
• Limited Color Options:
  Currently, it’s mostly available in black or gray. A few more modern color choices could make it blend better with U.S. home-office aesthetics.

Summary: Minor comfort tweaks and visual variety could take the M59AS from great to perfect.

My Personal Experience with SIHOO M59AS

Here’s what stood out during my hands-on use:

• It took me less than 20 minutes to set up — no extra tools needed.
• The mesh feels elastic yet firm, giving that “floating” feeling when you sit.
• The lumbar support actually moves with me, which helps my lower back when I lean forward to type.
• The adjustable headrest fits perfectly — I’m 5’10” and it supports my neck naturally.
• The recline function feels smooth, not stiff or wobbly.
• I love that the armrests flip up — I use that space for stretching or playing my guitar between work.
• After using it for a week, I noticed less lower-back pain compared to my old leather chair.
• The build feels premium — no creaks or loose parts.
• It’s quiet when you move, perfect for late-night work sessions.
• The backrest’s airflow is a huge plus for long summer days in the U.S.

Summary: The M59AS feels like it was designed for people who work long hours but still want freedom and flexibility in how they sit.

Comparing with Other Brand

I’ve also used the Secretlab TITAN Evo, which is a great gaming chair but quite different in design philosophy. The TITAN focuses more on cushioning and bold looks, while the SIHOO M59AS prioritizes flexibility and airflow — better for productivity setups.

SIHOO M59AS vs Secretlab TITAN Evo: Quick Comparison

Feature	SIHOO M59AS	Secretlab TITAN Evo
Primary Use	Office / Work	Gaming / Work
Material	Breathable Mesh	Leather / Fabric
Back Support	Adaptive Dual Back	Static Lumbar Adjustment
Armrests	3D Flip-Up	4D Fixed
Comfort Level	Balanced & Airy	Plush & Firm
Weight Capacity	330 lbs	395 lbs
Assembly Time	~20 minutes	~30–40 minutes
Price Range (Approx.)	Check Amazon	$450–$600
Best For	Office workers, creators	Gamers, reclined comfort seekers

Summary: The SIHOO M59AS is better suited for long office hours and ergonomic posture, while the TITAN Evo shines for gaming comfort and aesthetics.

Recommendation

If you’re someone who spends hours working from home or in an office, the SIHOO M59AS is worth every dollar. It’s designed for real-life sitting — breathable, flexible, and strong. For U.S. users with warm climates or compact home setups, its flip-up armrests and mesh design make it even more appealing.

However, if you prefer a cushioned, plush feel or need bold color options to match your gaming setup, you might want to explore premium models like the Secretlab TITAN Evo.

Read More:

Sihoo M57 Chair Review: Unfiltered Thoughts After Weeks of Use

Sihoo Doro C300 Review: My Personal Experience Explained

Sihoo Doro S100 Review: My Honest Daily Experience

FAQs About the SIHOO M59AS Ergonomic Office Chair

1. Is the SIHOO M59AS good for long hours of work?
Yes, the SIHOO M59AS is built for long sitting sessions. Its mesh back keeps you cool, and the adaptive lumbar support reduces back strain during extended use.

2. Does the SIHOO M59AS fit tall users?
Yes, it suits people up to about 6’2″. The adjustable headrest and seat height make it easy to find a comfortable position for taller users.

3. How hard is it to assemble the SIHOO M59AS?
Assembly is simple and quick. Most people finish setting it up in under 20 minutes with the included tools and clear instructions.

4. What makes the SIHOO M59AS different from other chairs?
Its dual back design and 3D flip-up armrests stand out. These features make it more flexible and supportive than most chairs in its price range.

5. Is the SIHOO M59AS worth buying for home offices in the U.S.?
Absolutely. Its breathable mesh and sturdy frame make it great for warm climates and compact setups often found in U.S. home offices.