# SIHOO M57 Ergonomic Mesh Office Chair, 330 lb, Black

Ergonomic: The SIHOO M57 is a black high-back mesh office chair with adjustable headrest and lumbar support, three-dimensional armrests and tilt settings. Its listed load rating is 330 lb, while customer feedback is divided on lumbar positioning and recline feel.

- [Original product page](https://bargainpostbox.co.uk/product/sihoo-m57-ergonomic-mesh-office-chair-black)
- [View offer](https://bargainpostbox.co.uk/visit/sihoo-m57-ergonomic-mesh-office-chair-black)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: SIHOO
- Model: M57
- Category: Home & Kitchen > Furniture > Chairs & Armchairs
- Price: 216.84 GBP
- Previous price: 229.99 GBP
- Discount: 6%
- Price checked: 2026-11-12T18:13:03.332Z
- Rating: 4.3 / 5
- Reviews: 5930

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Mesh seat and back are described as breathable, with an adjustable headrest and lumbar support.
- Manufacturer feature copy describes three-position recline at 110°–116°–126° and 10 cm of height adjustment.
- The armrests are described as adjustable for height, forward and backward movement, and rotation.
- The listing gives a maximum weight recommendation of 149.69 kg and separately claims a 330 lb capacity.

## Pros

- Multiple adjustment points let buyers alter the headrest, lumbar support, armrests and recline rather than relying on a fixed seating position.
- Mesh at the seat and back may suit buyers who prefer an airy chair surface.
- The supplied manufacturer description says assembly instructions are included.

## Specifications

### Identity
- Brand: SIHOO
- Model: M57
### Dimensions and installation
- Form factor: Desk Chair
- Dimensions listed: 43 x 61 x 110 centimetres
- Weight listed: 18.9 Kilograms
### Materials and protection
- Material listed: Plastic
- Seat and back: Fabric mesh
- Frame: Aluminium
- Maximum weight recommendation: 149.69 Kilograms
### Adjustments and construction
- Listed special features: Adjustable headrest/lumbar support, Ergonomic, Seat cushion with shaped cotton + Breathable mesh, Seat height: 45~55cm, Sitting depth:46CM
- Recline positions: 3
- Tilt: Yes
- Armrest adjustability: Height \(1D/Vertical\)
- Back style: High Back
- Seat back interior height: 68 Centimetres
- Seat height: 43.5 Centimetres
- Seat depth: 50 centimetres
- Arm height: 7 Centimetres
- Chair backrest width: 10 Centimetres
### Use and care
- Recommended use: Office
- Indoor/outdoor use: Indoor
- Surface recommendation: Hard Floor
- Care instructions: Wipe Clean
- Assembly instructions: Assembly instructions included
- Manufacturer warranty description: 3 year limited warranty.

## Before you buy

- Customer feedback says lumbar support works well for some people but sits too low for others, and some find the chair reclines too far. Consider whether the adjustment range suits your posture and preferred sitting angle.
- The listed maximum weight recommendation is 149.69 Kilograms, while feature copy and the title claim 330 lb. These capacity figures are not stated identically, so confirm the applicable rating for the selected listing. The chair's tilt positions and height adjustment are manufacturer claims, not independent measurements.

## In the box

- Caster (Included)

## A good fit for

- Home-office and office users who want a mesh chair with adjustable headrest, lumbar support, armrests and tilt.
- Buyers who prefer a high-back chair and are willing to check how the lumbar position and recline feel for their body.

## Less suited to

- Buyers who need confirmed fit for a specific body shape or fixed lumbar positioning without trying the adjustments.
- Buyers looking for a chair whose long-term durability is assured. Customer feedback includes reports of breakage within nine months.

## Customer feedback

Customer feedback highlights comfort, perceived quality and straightforward assembly, including reports of setup taking about 20 minutes. Opinions are mixed on lumbar support, adjustability and ergonomics: some appreciate the support and adjustments, while others find the lumbar too low or the chair leans too far back. Some also report breakage within nine months. Those differences matter because this chair relies on adjustable lumbar and tilt settings for fit, and feedback does not establish consistent long-term durability.
- Positive themes: Customers describe the chair as comfortable and good quality.
- Positive themes: Customers report that assembly is easy.
- Negative themes: Some customers report that the chair broke within nine months.
- Mixed feedback: Lumbar support is helpful for some, but others find it too low.
- Mixed feedback: Feedback differs on adjustability and ergonomics, including reports that the chair leans too far back.

## Frequently asked questions

### What adjustments does the SIHOO M57 offer?
The listing describes an adjustable headrest and lumbar support, armrests that adjust in height and can move forward or backward and rotate, plus three tilt positions. Buyer feedback differs on how well the lumbar position and recline suit them.
### What is the chair's weight capacity?
The title and feature copy claim 330 lb, while the technical details give a maximum weight recommendation of 149.69 Kilograms. Because the listing does not present these identically, confirm the applicable rating before buying.
### Is the chair made with mesh?
The listing identifies fabric mesh for the seat and describes mesh at the back. It also lists Plastic as the material and Aluminium as the frame material.
### Does it require assembly?
Yes. The listing says assembly is required and that instructions are included. Customer feedback describes assembly as easy, with setup taking about 20 minutes.

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## Images

![SIHOO M57 Ergonomic Mesh Office Chair, 330 lb, Black — 1](https://bargainpostbox.co.uk/i/wvKwM7BKoVMNNmZCqt4Jkjfb51Y58_wll-JgXyQjqiVXL6OaDO2v35YhJ7WdRzf7RgznDAkBoDOMwaf-Fc231CuIADpK7a48ocT6RFBYfzfpxabbl00IqhsA.jpg)

![SIHOO M57 Ergonomic Mesh Office Chair, 330 lb, Black — 2](https://bargainpostbox.co.uk/i/NRcHQIVMiwBv_PcOuveLe15y0neH8Dg3FzRb8niaIIHh-2-GPgmQSPuNzyE3e3MWlW9l-BvJhWa3LXznLcFG-xEZR0gujYX5vd2i0wVcAsA3K96eDURicBsw.jpg)

![SIHOO M57 Ergonomic Mesh Office Chair, 330 lb, Black — 3](https://bargainpostbox.co.uk/i/Z2WFFQ0zLCFq1jDaRYT3lAN8-yAL9Fg5KbDCFrG_ti6POM7LxsIoWzxfKZsL-uAcZRzUYKCaXiRfEZkmbCqCbJksiR3-7wFkdxHAF_gz9Ks1arYIqTkozMMO.jpg)

![SIHOO M57 Ergonomic Mesh Office Chair, 330 lb, Black — 4](https://bargainpostbox.co.uk/i/3troh5TfGYFxc3-OtElqv81QoRChKrla4byCQfVj7vVeLrCgPQGNRt_g1UYpeGs-9Zd2bvZivh2Og_pP5t0c9SgjBUT6ALB42CEDM8D1xvPmt9WOXkHajRYV.jpg)

![SIHOO M57 Ergonomic Mesh Office Chair, 330 lb, Black — 5](https://bargainpostbox.co.uk/i/cUGttkysoWiMTQ2ce12BBcoCiAPDHri9U6SdZqfa7LXivlkd6ymGsz0-2PG2Hy6PvOKBNM4bHsWmDrjD3dC2uyjwk9utB04xV5rfT7vXmEnQAKUaYjgdqFDN.jpg)

![SIHOO M57 Ergonomic Mesh Office Chair, 330 lb, Black — 6](https://bargainpostbox.co.uk/i/V8Xzzo4qAlenTA9OQgzBrw72UjmmaFY8f5iTzrwiKO1jBrm3ETMic7RPoVUHOkA7rPV26a7C4sPM2jOU0DH7_X1K2y3ZB3oNQLB2Rrk-A_T3PKrKe3hyKDYv.jpg)

![SIHOO M57 Ergonomic Mesh Office Chair, 330 lb, Black — 7](https://bargainpostbox.co.uk/i/SqDFO4or8KL1ljp1iopv_OLKoKH0PdiNBRL2h44gp2dUXFzEhHOmerD09UdkReZ2qDXNJf0EVxqdeGOK-U9jVlfpGUndr6f91b6IgjPzgKVyOw1I0sfnz5_d.jpg)