SIHOO
SIHOO M102C PRO Ergonomic Office Chair, High Back Desk Chair, Lumbar Support, Swivel Computer Task Chair with Adjustable Headrest, Tilt Function,Black
Excellent
In stock on Amazon.com
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SIHOO
SIHOO M18 Ergonomic Office Chair, High Back Mesh Desk Chair with Adjustable Headrest & Lumbar Support, 330lbs Capacity Computer Chair with 2D Armrests & Wide Cushion, Tilt Lock, for Home Office-Black
Good
- Mesh back
- 2D arms
- Headrest
$146.99$169.99
You save $23.00 off the list price
In stock on Amazon.com
Check PriceSpecs verified August 2026
Amazon.com data updated October 13, 2026, 2:34 pm ET. Price and availability are accurate as of the time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply.
Ergo Score Breakdown
Ergo Score: 40/100
Adjustability 12/40
Armrests6/102D armrests: 6/10
Seat height0/6Not listed by the seller
Seat depth0/5Not listed by the seller
Lumbar adjustment0/7Not listed by the seller
Recline0/2Not listed by the seller
Tilt lock3/3tilt lock: 3/3
Tilt tension3/3tilt tension: 3/3
Advanced tilt0/4tilt lock: 0/4
Support 18/30
Lumbar support8/12lumbar support: 8/12
Upper back support4/4headrest: 4/4
Headrest adjustment2/2headrest adjustment: 2/2
Cushion0/5Not listed by the seller
Seat edge0/3Not listed by the seller
Breathable back4/4mesh back: 4/4
Build 10/30
Warranty3/93-year warranty: 3/9
Weight capacity0/6Not listed by the seller
Certifications4/5BIFMA: 4/5
Base0/3Not listed by the seller
Gas lift0/2Not listed by the seller
Owner rating3/54.4 stars from 16847 reviews: 3/5
Comfort Index
Comfort Index: 50/100
Seat cushionNot listed by the seller
Cushion thicknessNot listed by the seller
ReclineNot listed by the seller
Breathable back15/15
Headrest10/10
Armrests10/10
Owner rating15/25
Specifications
| Seat height range | Not listed by the seller |
|---|---|
| Seat width | Not listed by the seller |
| Seat depth | Not listed by the seller |
| Seat depth adjustable | Not listed by the seller |
| Seat cushion | Not listed by the seller |
| Cushion thickness | Not listed by the seller |
| Back material | Mesh |
| Backrest height | Not listed by the seller |
| Backrest width | Not listed by the seller |
| Armrests | 2D adjustable |
| Lumbar support | Yes |
| Lumbar adjustments | Not listed by the seller |
| Headrest | Yes |
| Max recline | Not listed by the seller |
| Tilt mechanism | tilt lock |
| Base material | Not listed by the seller |
| Casters | Polyurethane |
| Gas lift | Not listed by the seller |
| Weight capacity | Not listed by the seller |
| Chair weight | Not listed by the seller |
| Overall height | Not listed by the seller |
| Warranty | 3 years |
| Certifications | BIFMA |
What We Like
- A review base of 16,847, the fourth largest in its category, averages 4.4.
- The tilt locks and its tension is adjustable.
Watch Out For
- Lumbar adjustment is not stated in the spec details, although the title lists adjustable lumbar support.
- Three Comfort Index parts earn nothing here, the cushion, the cushion thickness and the recline, because those details are not stated.
At a Glance
With 16,847 reviews behind it, the SIHOO M18 combines a mesh back, an adjustable headrest and adjustable tilt tension with a 3-year warranty and a BIFMA mark.
Who This Chair Is For
- Sitters who want a tilt that locks in place.
- Buyers who prefer a chair with a BIFMA mark.
Who Should Look Elsewhere
- Sitters who want a recline angle on the page should look elsewhere, as one is not stated.
- Buyers who want more arm movement than the 2D here should compare chairs with fuller arm adjustment.
Reading the M18's headrest and wheel details
The headrest adjusts in height, and the listing gives PU wheels as the casters. The seat height range is not stated in the spec fields.
Alternatives to Consider
Why consider: Another SIHOO with 3D arms and a seat height range of 18.11 to 22.04 inches, where this listing's arms are 2D and a seat height range is not stated.
AreShark
AreShark Office Chair - Ergonomic Breathable Mesh Desk Chair with Adjustable Lumbar Support and Flip-up Armrests - Executive High Back Rolling Swivel Comfortable Computer Gaming Chair for Home Office
Very Good
In stock on Amazon.com
Why consider: Gives a 120 degree recline and an SGS mark, where this listing does not state a recline angle.
Frequently Asked Questions
Is the M18's back mesh?
Yes, the back is mesh.
Does the M18 list how many positions the tilt locks in?
The number of lock positions is not stated.
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Amazon.com data updated October 13, 2026, 2:34 pm ET. Price and availability are accurate as of the time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply.