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Sihoo M59AS Space-Saving Ergonomic Office Chair with Flip-Up Arms

Sihoo M59AS Space-Saving Ergonomic Office Chair with Flip-Up Arms

4.8
Rated 4.8 out of 5 stars
46 Reviews

$239.99
$299.99 $239.99
Sale Sold out
Shipping calculated at checkout.
Color: Gray

Product Description

Sihoo M59AS delivers all-day comfort with breathable mesh, dual-section backrest, adjustable armrests, and dynamic lumbar support for a tailored ergonomic fit.

Key Features

Breathable mesh that keeps you cool

Full mesh seat and back promote continuous airflow to help reduce heat and keep you comfortable through daily work or study.

Compact back support that fits your posture

The dual-section backrest follows the natural curve of your spine to provide balanced support in a lighter, space-friendly design.

3D armrests that flip up to save space

Adjustable armrests support your arms through daily tasks, then flip up easily so the chair can slide neatly under your desk.

Adaptive support where you need it

Dynamic lumbar support and an adjustable headrest work together to help support your lower back, neck, and upper body.

Relaxing recline with pressure relief

A supportive seat and smooth recline help reduce pressure on your hips and thighs while keeping you comfortable as you lean back.

Built strong, tested safe

Premium components and certifications from BIFMA and TÜV ensure long-term durability and reliability.

Assembly Instruction

View assembly instructions 1/1 (PDF)

Materials

PA-reinforced frame for everyday durability

Key structural parts, including the headrest, backrest frame, armrest frame, and seat shell, use reinforced PA materials for dependable strength, stability, and long-term daily use.

Breathable PE mesh for cool daily comfort

The headrest, backrest, and seat use durable PE + polyester mesh that promotes airflow while offering strong resistance to wear, pressure, and everyday use.

Adjustable headrest with reinforced support

The height- and angle-adjustable headrest uses a reinforced PA structure to help support your neck comfortably while adapting to different sitting positions.

3D flip-up armrests with PU arm pads

The reinforced armrest structure features soft PU arm pads that slide and adjust for daily support, while flipping up easily to save space when needed.

Supportive mesh seat with durable seat frame

A reinforced seat shell paired with durable mesh helps provide breathable comfort and reliable support through long work or study sessions.

Multi-function steel tilt mechanism

The steel multi-function mechanism supports smooth height adjustment, recline tension control, and recline lock for a stable and flexible sitting experience.

BIFMA-tested gas lift for reliable adjustment

The steel gas lift has passed BIFMA testing to provide dependable height adjustment and stable long-term performance.

PU silent casters that protect your flooring

Durable PU casters glide smoothly and quietly while helping reduce scratches on hardwood, tile, and other hard floor surfaces.

Heavy-duty 350-grade steel base

The reinforced 350-grade steel base provides a stable foundation and reliable load-bearing support for everyday use.

Promise

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.

Satisfaction Guarantee: For any issues, contact support_ca@sihoo.com for prompt assistance and guaranteed satisfaction.

  • Overcome sitting pain
  • Save money
  • Enhance workplace
  • Sustainable development
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Details

Comparison

Review

M59AS
Color:
$239.99
$299.99 $239.99
Sale Sold out
4 Reasons You’ll Love the M59AS
Stay Cool Through Daily Work
Stay Cool Through Daily Work
Breathable mesh across the seat and back helps improve airflow, so you stay cooler and more comfortable through everyday work or study.
Support That Fits Your Posture
Support That Fits Your Posture
The dual-section backrest, adaptive lumbar support, and adjustable headrest work together to help support your spine, neck, and lower back as you sit and move.
Arm Support That Saves Space
Arm Support That Saves Space
3D adjustable armrests support your arms through daily tasks, then flip up easily so the chair can slide neatly under your desk when not in use.
More Room Around You
More Room Around You
A supportive seat and smooth recline help reduce pressure while sitting, while the compact design makes the M59AS a smart fit for smaller spaces.
 

For every part of you

Enhance your posture, relieve your stress—sit well and work better.

Adjustable Support for Everyday Work

3D Headrest for Daily Neck Support
The double-jointed headrest adjusts in height and angle to help support your head and neck through focused work, upright sitting, and more relaxed recline.
3D Armrests That Flip Up to Save Space
The 3D adjustable armrests support your arms through daily tasks, then flip up easily so the chair can slide neatly under your desk when not in use.
Smooth Recline for Work and Rest
Switch easily between upright focus and a more relaxed recline when you need a break. Each angle is designed to help you stay supported and comfortable throughout the day.

Key Features To Sight Right

Space-Saving Ergonomic Design
The M59AS combines ergonomic support with a more compact footprint, making it easier to fit into smaller rooms, shared spaces, and flexible work setups.
Adaptive Lumbar for Daily Support
Dynamic lumbar support helps maintain comfortable lower-back support as you sit, shift, and move through everyday work or study.
Breathable Full-Mesh Comfort
Breathable mesh across the seat and back helps improve airflow, so you stay cooler and more comfortable through long hours at your desk.
3D Flip-Up Armrests
The armrests adjust for daily support, then flip up easily to help the chair slide neatly under your desk when you need more room.
Compact Comfort with Recline
A supportive seat and smooth recline help reduce pressure while sitting, while giving you a more flexible, space-friendly seating experience.
Convenience That Stays Close
An integrated coat hanger keeps your jacket or bag within easy reach, while smooth-rolling PU casters make it easy to move quietly around your workspace.
Certified Quality, Trusted by Experts
 

Find the Right Fit

Product
Sihoo M59AS Space-Saving Ergonomic Office Chair with Flip-Up Arms
$239.99
$299.99 $239.99
Sale Sold out
Doro C300 office chair
$359.99
$359.99
Sale Sold out
Sihoo C300 Pro Ergonomic Office Chair with Seat Depth for Long Sitting
$589.99
$799.99 $589.99
Sale Sold out
Name M59AS DORO C300 DORO C300 Pro
Best For Smaller spaces and flexible setups Balanced everyday ergonomic support Long-hour work with more adjustability
Support Style Compact and practical Balanced and adaptive More refined and adjustable
Key Differences 3D flip-up armrests, compact footprint 4D coordinated armrests, dynamic support 6D armrests, seat depth adjustment
Lumbar & Back Daily support with a dual-section backrest Dynamic lumbar with a flexible backrest Enhanced lumbar support with a more adjustable fit
product weight 36.7 lbs 50.93 lbs 55.34 lbs
weight capacity 330 lbs 330 lbs 330 lbs
guarantee (3) years warranty (3) years warranty (3) years warranty
Choose It If… You want ergonomic support with a smarter fit for smaller spaces You want a strong everyday upgrade for work, study, or gaming You want more complete workday support with extra adjustability

Find the Right Fit

Sihoo M59AS Space-Saving Ergonomic Office Chair with Flip-Up Arms
$239.99
$299.99 $239.99
Sale Sold out
Doro C300 office chair
$359.99
$359.99
Sale Sold out
Name
M59AS
Name
DORO C300
Best For
Smaller spaces and flexible setups
Best For
Balanced everyday ergonomic support
Support Style
Compact and practical
Support Style
Balanced and adaptive
Key Differences
3D flip-up armrests, compact footprint
Key Differences
4D coordinated armrests, dynamic support
Lumbar & Back
Daily support with a dual-section backrest
Lumbar & Back
Dynamic lumbar with a flexible backrest
product weight
36.7 lbs
product weight
50.93 lbs
weight capacity
330 lbs
weight capacity
330 lbs
guarantee
(3) years warranty
guarantee
(3) years warranty
Choose It If…
You want ergonomic support with a smarter fit for smaller spaces
Choose It If…
You want a strong everyday upgrade for work, study, or gaming

Customer Reviews

4.8
Rated 4.8 out of 5 stars
Based on 64 reviews
Total 5 star reviews: 49 Total 4 star reviews: 15 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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64 reviews
  • GK
    Gregory K.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    5 Stars

    I was surprised by just how firm the support in this chair was without it being hard as a rock or comfortable to sit in long term.I have a desk job that often has me tied to my chairs for hours at a time. In that situation it means I need ti make sure any chair I have supports my lower back and this one does that very well.

    Was this helpful?
  • C
    CrazyTattooedLady
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10 months ago
    5 Stars

    My grandson desperately needed a new desk chair. His gaming chair fell apart and I decided (since he lives with me) to get him this chair as an early Christmas present. The second it arrived, he brought it up to his room and assembled it. Assembly was easy enough and he had it together in about 20 minutes. He loves it! He said it's more comfortable than his gaming chair. Sturdy, durable, and well made. Highly recommend.

    Was this helpful?
  • JA
    Jenny a. J.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    5 Stars

    I'm writing this review after daily driving this chair for over a month and a half now. I'm surprisingly surprised at how good this chair feels! The mesh circulates air to your back and bottom and it keeps it cool. Also there's support in all the right areas. I can sit in it for hours and not feel much discomfort. The arms are a hard plastic though so that may turn some people off but honestly most of the time my arms are near my desk so I don't use the arm rests much. The only thing I don't like about this chair is that it does creak and crack due to a mostly plastic construction. It's a bit of a minor complaint. I changed wheels to better clear rubber ones to not scuff up my floor. I think this chair is great! super comfortable and very supportive. I am extremely pleasantly surprised given the price range. I think buying super expensive chairs give incredibly diminishing returns in the end. This chair really fits the bill for me.

    Was this helpful?
  • KM
    K m.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    5 Stars

    I got this to replace a gaming chair that was beginning to come apart. It could not withstand a full time work schedule of use. This chair does not have the typical foam cushion seat. It has tightly stretched woven mesh. It is actually more supportive than it looks. The flip up armrests are genius! I don't have to adjust my seat height to push the chair in ever. If I could have a wishlist item, it would be adjustable back height. The lumbar support falls just short of where I really want it to be. Overall, this chair is supportive and it's unique design feels like it moves with me. So far, it's comfortable and holding up well.

    Was this helpful?
  • TT
    Tater T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    5 Stars

    This lightweight easy rolling office chair is very comfortable and adjustable. It took about 15 minutes to assemble with clear instructions. The seating area of the chair is all mesh and sits comfortable. Since it is a mesh it's perfect for those people who tend to get hot or sweaty in a leather or leather-like chair. Very pleased with this chair, great product!

    Was this helpful?

Frequently asked questions

Where do you ship?

We ship directly from our local Canadian warehouses for fast delivery and smooth service.

Do I need to pay customs or import fees when ordering from Canada?

No worries, Sihoo has two local warehouses in Canada, so your order ships domestically with no customs or import fees.

Is the 30 day trial risk free?

Yes! Every Sihoo chair purchased from our official Canadian website includes a 30-day risk-free trial.

Try it in your home or office, and if you’re not completely satisfied, simply contact us within 30 days for a full refund. No hidden fees, no catch.

What is Sihoo's return policy?

You can return your chair within 30 days of receiving it for any reason. We’ll arrange the return process and refund your purchase once the product is received back in its original condition and packaging.

What is included in the 3 year warranty?

All Sihoo chairs are backed by a 3-year limited warranty, covering manufacturing defects in materials and workmanship under normal use.


This includes the frame, base, casters, gas lift, and mechanism components.

How long does it take to assemble the M59AS chair?

Assembly is quick and easy, most users finish in about 20–30 minutes with the included tools and instructions.

What are the size and weights of the packaging?

Each Sihoo M59as ships in one securely packed box for easy handling.


Approximate dimensions and weight:
Box Dimensions: 29.1" × 13.8" × 20.9" (74 × 35 × 53 cm)
Shipping Weight: 40.0 lb (18.1 kg)