
Humanscale
Humanscale Diffrient World Task Chair | Black Catena Mesh Seat and Back | Black Frame, Black Trim | Height-Adjustable Duron Arms | Standard Foam Seat, 3" Carpet Casters, 5" Cylinder
In stock on Amazon.com
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Humanscale
$777.60
In stock on Amazon.com
Check PriceSpecs verified October 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.
| Seat height range | 15.6 to 20.8 in (from manufacturer) |
|---|---|
| Seat width | Not listed by the seller |
| Seat depth | Not listed by the seller |
| Seat depth adjustable | Yes |
| Seat cushion | Not listed by the seller |
| Cushion thickness | Not listed by the seller |
| Back material | Mesh (from manufacturer) |
| Backrest height | Not listed by the seller |
| Backrest width | Not listed by the seller |
| Armrests | 1D (height only) |
| Lumbar support | Yes |
| Lumbar adjustments | Not listed by the seller |
| Headrest | Not listed by the seller |
| Max recline | Not listed by the seller |
| Tilt mechanism | weight-sensitive recline |
| Base material | Not listed by the seller |
| Casters | Hard floor |
| Gas lift | Not listed by the seller |
| Weight capacity | 400 lb (from manufacturer) |
| Chair weight | 30 lb |
| Overall height | Not listed by the seller |
| Warranty | 15 years (from manufacturer) |
| Certifications | Not listed by the seller |
A comfortable seat height is about a quarter of your body height. Here is how this chair's listed seat range lines up (how we rate).
| Your height | Seat range | Fit | Weight |
|---|---|---|---|
| 4'11" to 5'3" | 15.6 to 20.8 in seat (ideal about 15.3 in) | Seat may be too high | Rated to 400 lb |
| 5'4" to 5'7" | 15.6 to 20.8 in seat (ideal about 16.4 in) | Good fit | Rated to 400 lb |
| 5'8" to 5'11" | 15.6 to 20.8 in seat (ideal about 17.4 in) | Good fit | Rated to 400 lb |
| 6'0" to 6'3" | 15.6 to 20.8 in seat (ideal about 18.4 in) | Good fit | Rated to 400 lb |
| 6'4" and up | 15.6 to 20.8 in seat (ideal about 19.3 in) | Good fit | Rated to 400 lb |
White pinstripe mesh and hard floor casters distinguish this Diffrient World from the carpet-caster listing. It keeps the 15-year factory warranty, with five years on fabric, cushions and arm pads, plus a 400 lb rating and a weight-sensitive recline, though only 3 reviews back its 3.5 rating.
The recline is described as weight-sensitive and the seat depth is adjustable, with a seat height range of 15.6 to 20.75 inches. The mesh is white pinstripe, and the casters are listed for hard floors. The listing does not state the cushion, the lumbar type, a headrest or the maximum recline angle.

Humanscale
In stock on Amazon.com
Why consider: Is the carpet-caster listing, with a foam cushion under its mesh seat and a 4.8 rating from one review, against hard casters and 3 reviews here.

Haworth
In stock on Amazon.com
Why consider: Gives you a Digital Knit seat, a pelvic and asymmetrical lumbar and 4D armrests, where these Duron arms adjust in height only.
The factory warranty is 15 years, but fabric, cushions and arm pads are covered for five years.
This one has hard floor casters, white pinstripe mesh, and warranty notes that give fabric, cushions and arm pads a shorter term. The other listing has carpet casters and calls its warranty round-the-clock.

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Humanscale
In stock on Amazon.com
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.