









Reviewed for sustainabilityComosum Meter · Mater 3.8 / 5Show the six category scores
Earth Stool with Backrest is made by Mater. We review every brand we carry against published evidence in six categories; Mater scores 3.8 out of 5 (23 of 30).
- Material 5 out of 5FSC wood, waste-based Matek; Wallpaper* 2019
- Transportation 4 out of 5Mostly made in Latvia, Slovenia, Denmark
- Manufacturing 4 out of 5EU partners; Bo Bedre sustainability award
- Labor 4 out of 5EU partners bound by supplier code
- Energy 3 out of 5No energy data published
- Durability 3 out of 533 spare parts sold; 2-year warranty
Earth Stool with Backrest
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Earth Stool with Backrest
Danish architect Eva Harlou gives her press-molded coffee-waste seat a curved backrest here, and the stool becomes somewhere to stay.
The seat and back are Matek, the compound Mater developed with the Danish Technological Institute from coffee shells supplied by the roaster BKI and recycled post-consumer plastic. Press molding turns that waste into one smooth, pebble-textured piece, carried on a gun-metal powder-coated steel frame. It is the most sculptural silhouette in our Mater collection, and the back is what makes it work through a whole evening rather than a quick coffee.
Materials
Matek composite seat and backrest: coffee-shell waste from BKI coffee bound with recycled post-consumer plastic; steel frame with gun-metal powder coating
Dimensions
14.5 in W x 10.6 in D; seat height 27.2 in with 39.0 in overall, or seat height 29.1 in with 40.9 in overall
Designer
Eva Harlou
Made in
Denmark
Colors
Recycled Coffee Dark
Care
Wipe the Matek seat and the powder-coated frame with a damp cloth; avoid abrasive cleaners, solvents and prolonged direct sun
Common Questions
How is it different from the standard Earth Stool?
The backrest. Both share Eva Harlou's press-molded Matek seat of coffee-shell waste and recycled post-consumer plastic on a gun-metal steel frame; this version adds a curved back for longer sittings.
Which height should I order?
Choose the 27.2-inch seat for kitchen counters around 36 inches and the 29.1-inch seat for bar counters of 40 inches or more, keeping about 10 inches of clearance under the counter.
What is the seat made of?
Coffee shells from BKI coffee blended with recycled post-consumer plastic into Matek, a compound Mater developed with the Danish Technological Institute and press-molds into a single solid piece.
Mater +
Shipping & Returns +
Country of Production +
Denmark
Dimensions +
Care Guide +
Mater Sustainability Meter
Reviewed for sustainability by Comosum: Mater scores 3.8 out of 5 (23 of 30) across six categories, from published evidence.
- MaterialFSC wood, waste-based Matek; Wallpaper* 20195 out of 5
- TransportationMostly made in Latvia, Slovenia, Denmark4 out of 5
- ManufacturingEU partners; Bo Bedre sustainability award4 out of 5
- LaborEU partners bound by supplier code4 out of 5
- EnergyNo energy data published3 out of 5
- Durability33 spare parts sold; 2-year warranty3 out of 5
grade out of 5
Shipping and Returns
Shop with confidence. Learn more about our shipping process, delivery estimates, and hassle-free return policy.
Shipping Info
Flat-rate shipping from $10 by order total — your exact rate is shown above, next to the price. Orders over $1,500 ship FREE, freight and duties included. White Glove delivery is available at checkout on orders over $1,000 — $250 up to $1,500, $150 above it.
Returns
30-day returns in unused, original condition. Start a return at hello@comosum.co — we'll coordinate it with you.
Warranty
Every piece carries its manufacturer's warranty — typically 2 years or longer. We handle all claims for you at hello@comosum.co.
























