Designed by Todd Bracher

Trea Chair with Four Star Base

Minimal form. Maximum versatility. Trea delivers lightweight, refined seating designed for dynamic, shared spaces.

Design Features

  • Solid-state recline

    Solid-state recline

    Supports a smooth, intuitive 12° recline without manual adjustments.
  • Four star swivel base

    Four star swivel base

    Adds flexibility for light task and collaborative environments.
  • Contoured shell

    Contoured shell

    Cradles the body for balanced ergonomic support.
  • Waterfall seat edge

    Waterfall seat edge

    Helps reduce pressure behind the knees for improved comfort.
  • Optional upholstered seat pad

    Optional upholstered seat pad

    Adds comfort and customization with premium textiles.

Specifications

Variant

SKU

T300WWWSF10XSNC

Casters

Multi-Surface Caster for Hard or Soft Floor

Warranty

5 Years

Dimensions

Width

22 in

Depth

29 in

Overall Height

31.8 in - 31.8 in

Backrest Height

15.75 in.

Seat Depth

18.5 in - 18.5 in

Seat Height

31.8 in - 31.8 in

Weight

Overall Weight

20.5 lb

Materials & Sustainability

  • Product Materials

    Trea is constructed using engineered polymers, tubular steel, die-cast aluminum, contoured seat cushion, and upholstery textile. Engineered polymers form the seat shell and primary structure, selected for flexibility and impact resistance. The base is constructed from tubular steel or aluminum depending on configuration. Die-cast aluminum is used for the solid-state recline mechanism.

Who It's For

For people who want comfort without complicated controls.

  • Ideal for touchdown spaces and flexible work zones
  • Great for collaborative environments where swivel movement matters
  • A strong fit for modern offices that want design-forward seating with real support

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

Care, Maintenance & Longevity

  • Upholstery

    Care instructions vary depending on the selected upholstery. Vacuum regularly using a soft brush attachment to remove dust and prevent dirt from working into the fibers. For spills, act quickly — blot liquids with an absorbent cloth before they set. Stains should be removed by gently dabbing with a lint-free cloth or sponge dampened with clean, warm water. If necessary, add a small amount of mild dish soap, then finish by dabbing with clean water. Avoid rubbing, as this may damage the textile surface. For wool textiles, professional dry cleaning is recommended for anything beyond surface stains. For detailed care instructions by upholstery type, refer to the Humanscale Care Guide.

  • Frame, Base & Components

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

The futuristic form language of the Trea multipurpose chair is complemented by sophisticated ergonomics

Portrait of Todd Bracher with glasses and short hair on a light gray background

Designed By Todd Bracher

Todd Bracher is an industrial designer, strategic advisor, and author whose practice spans disciplines, industries, and cultures. Over a 25-year career, he has brought more than 200 products to market for leading global brands including Herman Miller, Humanscale, Georg Jensen, Fritz Hansen, Issey Miyake, and 3M—earning recognition as a three-time International Designer of the Year. Bracher is the founder of Design in Context, a methodology built on the principle that form follows function, function follows context. By placing business objectives, human needs, and contemporary culture at the center of the design process, the framework produces solutions that are quietly effective, deeply considered, and built to endure. After a decade working across Copenhagen, Milan, Paris, and London, Bracher returned to his native New York, where he is based in Brooklyn.
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4.5
Rated 4.5 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 2 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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4 reviews
  • Rania M.
    Verified Buyer
    Rated 4 out of 5 stars
    Back supports my posture

    Good design. The back supports my posture perfectly and it feels like a solid chair for years of use.

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  • Hannah W.
    Verified Buyer
    Rated 5 out of 5 stars
    Chair feels incredibly sturdy

    This chair feels incredibly sturdy. It's perfect for my study corner, and I loved all of the options that you can customize with! The recline is natural and the backrest hugs just right.

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  • Pablo A.
    Verified Buyer
    Rated 4 out of 5 stars
    Very comfortable and elegant

    Very comfortable and elegant. The four-star base makes it feel solid and premium, but it doesn’t move much.

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  • Javier S.
    Verified Buyer
    Rated 5 out of 5 stars
    Worth that scary price tag

    Everyone in our conference room likes the look and feel. Supports long meetings without soreness and the aesthetic is clean... worth that scary price tag

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