Designed by Niels Diffrient

Liberty Ocean Task Stool with Mesh Backrest

A chair that moves with you, elevated. A tri-panel mesh back and weight-sensitive recline deliver continuous, self-adjusting support at any height.

Design Features

  • Effortless recline support

    Effortless recline support

    Weight-sensitive recline responds naturally to the sitter without manual adjustments.
  • Made with reclaimed ocean plastic

    Made with reclaimed ocean plastic

    Repurposes discarded fishing nets into durable chair components to help reduce marine waste.
  • Designed for elevated workstations

    Designed for elevated workstations

    Ideal for sit-stand desks, counter-height desks, and active work environments.
  • Clean, modern profile

    Clean, modern profile

    Minimalist design that fits naturally into contemporary offices and home workspaces.
  • Available in mesh or fabric

    Available in mesh or fabric

    Choose between mesh or upholstered fabric to complement different workspace aesthetics.

Specifications

Variant

SKU

L233AN10AR13XFWSNSC

Casters

Multi-Surface Caster for Hard or Soft Floor

Warranty

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

Dimensions

Width

673 mm

Depth

635 mm

Overall Height

1105 mm - 1295 mm

Backrest Height

23 in.

Seat Depth

419 mm - 476 mm

Seat Height

536 mm - 726 mm

Weight

Overall Weight

15.42 kg

Weight Capacity

181.44 kg

Materials & Sustainability

  • Product Materials

    Liberty Ocean 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. Ocean plastic, including discarded fishing nets upcycled from ocean and coastal environments, is incorporated into select structural components.

  • Upcycled Ocean Plastic

    Select components in this product are made using 2 lbs of upcycled plastic from ocean and coastal environments, including discarded fishing nets. Each unit produced diverts material from marine ecosystems while delivering the same performance as virgin materials.

Who It's For

For people who want breathable ergonomic support at standing-height desks, with a sustainability-first material story.

  • Ideal for sit-stand desks, counter-height workstations, and elevated task areas
  • Great for warm offices where airflow and lightweight comfort matter
  • A strong fit for sustainability-focused teams and modern home workspaces

Certifications & Testing
  • HPD
  • DECLARE® - Red List Free
  • Living Product Challenge
  • CDPH
  • BIFMA LEVEL® - Level 3
  • SCS Indoor Advantage Gold
  • MID

Care, Maintenance & Longevity

  • Upholstery

    Vacuum regularly using a soft brush attachment. For deeper cleaning, wipe down with a damp cloth — no soap required for routine maintenance. For stubborn marks, a small amount of mild soap solution can be applied and wiped clean with a damp cloth. Allow to dry fully before use.

  • Frame, Base & Components

    Clean metal and plastic components with a soft, damp cloth and mild soap if needed. Dry thoroughly.

The ergonomic designs are not just made for comfort, but also with the hope that they reduce the industry's footprint and use of potentially-harmful chemicals.

A world-class ergonomic task chair with minimalist charms, this office chair projects versatility in both style and function.

This chair looks as good as it feels, with sharp aesthetics centered around lined, tri-panel mesh.

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.
View Design Story
4.7
Rated 4.7 out of 5 stars
Based on 6 reviews
Total 5 star reviews: 4 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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6 reviews
  • Natalia R.
    Verified Buyer
    Rated 5 out of 5 stars
    Spend most of my

    I spend most of my day standing at my desk, but the stool is perfect for short breaks. Love that it’s made from recycled fishing nets too.

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  • Elena G.
    Verified Buyer
    Rated 4 out of 5 stars
    Foot ring is really useful for my height

    The foot ring is really useful for my height. The mesh back is supportive and keeps me cool while I work at my drafting table. This chair adapts instantly to my position, which is impressive.

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  • Ava W.
    Verified Buyer
    Rated 4 out of 5 stars
    Excellent quality

    Excellent quality, would buy again

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  • Clara L.
    Verified Buyer
    Rated 5 out of 5 stars
    Great stool

    Great stool, helps with posture. The mesh is flexible but firm where it counts

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  • Marta R.
    Verified Buyer
    Rated 5 out of 5 stars
    Comfortable overall

    Comfortable overall. I’m a bit heavier and sometimes the foot ring slides a bit. Still, the mesh back is excellent and the stool feels durable.

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