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

Design Features

  • Supportive shell design

    Supportive shell design

    Follows the natural curves of the body for balanced comfort.
  • Height adjustable

    Height adjustable

    Designed to fit a range of counter-height and elevated setups.
  • Designed for elevated seating

    Designed for elevated seating

    Ideal for higher work surfaces and sit-stand desk use.
  • 360° swivel

    360° swivel

    Allows easy rotation and flexibility while seated.
  • 12° recline

    12° recline

    Supports natural movement without manual adjustments.

Specifications

Variant

SKU

T500WWWAR13XSNC

Warranty

15 Years; Fabric/Cushions/Casters: 5 Years

Dimensions

Width

22 in

Depth

25 in

Overall Height

34.63 in - 45.38 in

Backrest Height

15.75 in.

Seat Depth

18.5 in - 18.5 in

Seat Height

34.63 in - 45.38 in

Weight

Overall Weight

31 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 a more active way to sit at higher surfaces.

  • Ideal for sit-stand desks and elevated workstations
  • Great for collaborative spaces and flexible office layouts
  • A strong fit for teams who want minimalist seating that supports movement

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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4.4
Rated 4.4 out of 5 stars
Based on 5 reviews
Total 5 star reviews: 2 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
5 reviews
  • Anika I.
    Verified Buyer
    Rated 4 out of 5 stars
    Sturdy and stylish

    Sturdy and stylish. I was going to get the chair without rollers but I'm glad I opted for the stool.

  • Rohan P.
    Verified Buyer
    Rated 5 out of 5 stars
    Foot ring is great

    Foot ring is great for keeping my legs supported. I use it at the counter all day and it stays comfortable.

  • Omar F.
    Verified Buyer
    Rated 5 out of 5 stars
    Had other Humanscale products in my office

    I had other Humanscale products in my office but this one is perfect height for my breakfast counter! The fabric feels bright and well made, happy with the purchase

  • Ana M.
    Verified Buyer
    Rated 4 out of 5 stars
    Looks good and feels stable

    Looks good and feels stable. Sitting here while working on my laptop is surprisingly pleasant.

  • Daniel P.
    Verified Buyer
    Rated 4 out of 5 stars
    Too much wobble

    Too much wobble for taller and heavier people to make this a 5 star review, but overall not a bad stool.