Designed by Niels Diffrient

World Task Chair with Mesh Backrest

Minimal design. Full performance. World uses a lightweight design and weight-sensitive recline to deliver effortless, self-adjusting support with less material.

Design Features

  • Weight-sensitive recline

    Weight-sensitive recline

    Uses body weight to deliver smooth, natural movement.
  • Designed for durability

    Designed for durability

    Minimal mechanisms reduce wear over time.
  • Breathable mesh comfort

    Breathable mesh comfort

    Helps keep you cool during long work sessions.
  • Backrest moves with you

    Backrest moves with you

    Maintains consistent support through different postures.
  • Armrests move with the sitter

    Armrests move with the sitter

    Attached to the backrest for consistent ergonomic positioning.
  • Adaptive backrest support

    Adaptive backrest support

    Shapes to the sitter for natural lumbar support.

Specifications

Variant

SKU

W10BN10AR13SSNSC

Casters

Multi-Surface Caster for Hard or Soft Floor

Warranty

15 Years; Fabric/Cushions/Arm Pads/Casters: 5 Years

Dimensions

Width

654 mm

Depth

635 mm

Overall Height

904 mm - 1035 mm

Backrest Height

22.5 in.

Seat Depth

409 mm - 470 mm

Seat Height

396 mm - 527 mm

Weight

Overall Weight

11.79 kg

Weight Capacity

181.44 kg


Materials & Sustainability

  • Product Materials

    World is constructed using die-cast aluminum, steel, engineered polymers, contoured seat cushion, multi-layer Duron arm pads, and upholstery textile. Die-cast aluminum and steel form the structural frame and recline mechanism. Engineered polymers are used for components requiring flexibility and impact resistance. The back features patented Form Sensing tri-panel mesh that takes on the exact shape of the sitter's back, providing a personalized fit and maximum adaptability.


Who It's For

For people who want
breathable comfort built for real workdays.
- Ideal for remote workers and hybrid schedules
- Great for home offices where ventilation and support matter
- A strong fit for long workdays with no complicated controls


Certifications & Testing

  • HPD
  • DECLARE® - Red List Approved
  • Living Product Challenge
  • CDPH
  • BIFMA LEVEL® - Level 3
  • SCS Indoor Advantage Gold
  • Green Tick
  • MID

The Humanscale Diffrient World chair has produced a seat that's brimming with effortless ergonomic comfort all contained in a sleek design that adds a touch of modernity to a workspace.

A very comfortable chair.

A perfect score for seat comfort and backrest comfort, and we were impressed to note that its 'tri-panel backrest' also provided exceptional lumber support.

Blends an industrial minimalist design with a slew of feel-good features.

Conforms to your back while weight-sensitive recline adjusts automatically - but barely noticeably - with each movement.

Felt like the chair was protecting us from some of the more insidious side effects of sitting down.

Niels Diffrient designing on board while sitting on Humanscale Freedom Saddle Stool ring base

Design By Niels Diffrient (1928–2013)

Niels Diffrient was a pioneering industrial designer known for his human-centered approach and belief that design should be intuitive and effortless. Often called “the last of the mid-century modernists,” he focused on simplicity, allowing form to follow function in its purest sense. A Cranbrook Academy graduate alongside Charles and Ray Eames and Eero Saarinen, Diffrient went on to shape some of the most iconic products of the 20th century. His work at Henry Dreyfuss Associates helped define modern industrial design, while his research into human factors redefined how products support the body. His partnership with Humanscale introduced a new standard in seating, creating designs that automatically adapt to the user. Diffrient’s legacy lives on in products that are simple, timeless, and designed to improve the human experience.
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