Sold out
SIHOO Model M18 Ergonomic Chair
฿4,990
0% installments for up to 6 months, from ฿832/month with Beam
1
- 0% installments for 6 months, ฿832/month
- 5–7 year warrantyTerms and warranty registration
- Free delivery nationwide
- 5 showroomsBook a visit and try before you buy
Benefits
- Height-adjustable armrests for adaptable comfort
- Dual-adjustable lumbar support for personalized lower back support
- Soft, cushioned seat for cozy, long-lasting comfort
- Breathable mesh backrest to keep you cool
- Reclines up to 128° for comfortable relaxation
- Certified by BIFMA for quality and durability
- Endorsed by Creativebloq, TechRadar, GamingTrend, MMORPG, and more.
- SKU:
- SH-F029-M18-BLK
- Availability:
- In stock
- Collections:
- Smart Everyday Ergonomic Chairs,Ergonomic Chairs
Payment methods
Your payment information is processed securely.
Featured In
How to choose a right ergonomic office chair?
Check out our buying guide for you!
- Soft Comfort, Breathable Support: Sihoo M18 features a cushioned seat and breathable mesh backrest to provide a balance of soft comfort and cool airflow, even during long hours of sitting.
- Breathable Mesh Backrest: The mesh backrest promotes air circulation, keeping you cool and comfortable throughout your workday.
- W-Shaped Cushion Design: The seat cushion is designed in a W-shape with high-quality sponge for a soft, cozy seating experience that supports your posture.
- Dual-Adjustable Lumbar Support: Adjust the lumbar support both vertically and horizontally to align with your spine and provide customized lower back comfort.
- Height-Adjustable Armrests: The armrests can be easily adjusted to support your arms and shoulders at the perfect height, reducing strain.
- Relaxing Recline Angle: Recline up to 128° for a refreshing break. The recline feature helps you relax and recharge with ease.
- Customizable Headrest: The headrest adjusts vertically and pivots to fit the curvature of your neck, providing ideal support for both upright sitting and reclining.
- Sturdy and Durable: Built with high-quality materials, including a sturdy frame and durable components, the Sihoo M18 ensures long-lasting comfort and support.
What makes the Sihoo M18 ergonomic chair unique?
The M18 offers a combination of comfort and support with its W-shaped cushion, breathable mesh backrest, and dual-adjustable lumbar support. It’s designed for people who want both a cozy sitting experience and effective lower back support for long hours of work or relaxation.
Is the seat cushion comfortable for long periods?
Yes! The M18 features a W-shaped sponge cushion that provides soft, cozy seating, making it ideal for long workdays while maintaining comfort and support.
How does the mesh backrest help?
The breathable mesh backrest ensures airflow, preventing sweat and discomfort, even during extended sitting sessions, especially in warmer weather.
Can I adjust the lumbar support?
Yes, the lumbar support is dual-adjustable, allowing both vertical and horizontal adjustments to fit your spine’s natural curve for optimal lower back comfort.
How does the Sihoo M18 compare to the M57?
The M18 is designed for users who prioritize soft seating with its sponge cushion and mesh backrest for breathability. In contrast, the M57 offers a full mesh design for maximum airflow, along with a more contoured backrest for spine support. The M18 is more cushioned and cozy, while the M57 focuses on cool comfort and ergonomic alignment.
How should I choose between the M18 and the M57?
If you prefer a soft cushion and breathable backrest, the M18 is ideal. If you need full mesh construction for maximum cooling and ergonomic spine support, the M57 may suit you better. Both chairs provide excellent lumbar support and recline options, but the M18 offers a softer seating experience, while the M57 focuses on airflow and alignment.
What’s the recline range of the M18?
The M18 reclines up to 128°, allowing you to relax during breaks while staying supported.
Is the Sihoo M18 office chair a good fit for a home workspace?
Among the best home office chairs for someone who prefers a cushioned seat, the M18 is worth comparing. The best home office chairs still need to fit your height and desk, so review the published dimensions before choosing.
Having reviewed and tested around 40 office chairs to date, I can confidently say that when it comes to style, comfort, ergonomics and value, there is no better than the Sihoo M18 chair.
Beren Nealefrom CREATIVE BLOQ, my favourite budget office chair1 / 3
"Enhance your posture, relieve your stress—sit well and think better."
W-shape cushion
Breathable mesh backrest
Dual-adjustable lumber support
2D Adjustable armrests
How M18 Chair Helps?
Soft and Cozy Seating
The Sihoo M18’s W-shaped sponge cushion offers ultra-soft comfort for all-day sitting.
Stay cool and refreshed
The breathable mesh back keeps air flowing, preventing sweat and stickiness, so you stay cool and comfy.
Custom lumbar support
Adjust the lumbar support vertically and horizontally for perfect lower back comfort in any position.
Relaxed Arm Support
Adjust the armrests up or down to keep your arms relaxed and comfortable while you work.
Recline, Comfort, and Durability
Maximum 128° recline angle
Headrest moves 3.9” up and down and pivots 45°
Specifications
Overview
Sihoo M18 ergonomic chair offers essential features designed for lasting comfort and support, making it an ideal choice for both work and relaxation.
Maximum load: 136 kg
Recommended user height: 150–190 cm
Recline: 109–128°
Lumbar support: Adjustable
Headrest: 2D
Footrest: Available (FT version)
Backrest material: Mesh
Seat material: Memory foam
Warranty: 5–7 years
Chair weight: 17.2 kg
Dimensions
Front
Side
| Dimension | Value |
|---|---|
| Overall width (base) | 73.9 cm |
| Overall depth | 68.1 cm |
| Overall height | 112–130 cm |
| Seat height from floor | 44–54.1 cm |
| Seat width | 51.1 cm |
| Seat depth | 45.5 cm |
| Backrest width | 52.1 cm |
| Backrest height | 50 cm |
| Armrest height above seat | 21.1–27.9 cm |
| Width across armrests | 69.1 cm |
| Headrest width | 30 cm |
| Headrest height | 18 cm |
| Maximum load | 136 kg |
| Recommended user height | 150–190 cm |
@sihoothailand
For every part of you
Customer Reviews
There are no reviews for this product yet.
Product Details
M18 Highlights
-
Fully adjustable at 5 points: lumbar support, headrest, seat height, recline angle and armrests
-
Mesh backrest with good airflow, so you stay cool
-
W-shaped seat + 8 cm thick memory foam, soft to sit on without pressing on your legs
-
Suitable for heights of 150–190 cm
-
Suited to long hours of work / gaming / relieving neck, back and shoulder pain
FAQ
-
How do I choose a chair? See the comparison images, or just ask our admin team
-
Is it better than a gaming chair? More comfortable, better ventilated and more durable
-
Can I use it for intensive gaming? Absolutely, with excellent back support
Warranty
-
Warranty of 5–7 years
-
Returns/exchanges within 15 days
-
If it cannot be repaired → a new chair is sent
-
After-sales service directly from the brand
-
Meets BIFMA/SGS safety standards
Specifications
-
Headrest: 2D
-
Backrest: mesh
-
Lumbar pillow: adjustable
-
Seat: memory foam, 8 cm thick
-
Reclines to 109° / 118° / 128°
-
Maximum load 136 kg
-
Net weight 17.2 kg
-
Self-assembly required
Frequently Asked Questions
Do SIHOO chairs come with a warranty?
Every model comes with a warranty, and how long depends on the model. See each product page, or the "Warranty by model" table on the warranty registration page. After-sales service is provided by the SIHOO Thailand team in Thailand.
Where can I buy a genuine SIHOO chair?
You can order from SIHOO Thailand, the official distributor in Thailand, which provides a warranty from the Thai service center and after-sales service such as spare parts and repairs.
Can I try a chair before buying?
You can try a chair before you decide at some branches. See the branch details and contact options on the Contact us page, and ask before you travel to try one.
How many days do I have to return a product?
Under the returns policy, you can request a return within 30 days of receiving the product. The product must be in the condition you received it, unused and in its original packaging, with the receipt or proof of purchase.
When will I get my refund?
Once the store has received and inspected the returned product, an approved refund is paid to the original payment method within 10 business days. Your bank or credit card company may need additional time to process it.
What should I do if the product is damaged or the wrong model?
Inspect the product as soon as you receive it. If it is defective or damaged, or you received the wrong item, contact the store as soon as possible so it can check and put things right.
Compare with nearby models
Lower price SIHOO M59AS Ergonomic Chair฿4,990 | This modelSIHOO Model M18 Ergonomic Chair฿4,990 – ฿5,500 | Higher price SIHOO Smart M59Pro – Contoured Support, Flip-Up Armrests, Comfortable All Day฿4,990 – ฿6,490 | |
|---|---|---|---|
| Armrests | 2D | — | 3D |
| Lumbar support | Auto-adaptive | Adjustable | Spring, self-adjusting |
| Recline | 115–125° | 109–128° | 115–136° |
| Footrest | None | Available (FT version) | Available (FT version) |
How to adjust your chair
Watch how to assemble your chair and adjust it to fit your body. Tap to play.
Videos by model
You may also like
Save ฿2,510
Save ฿3,110