Coffee-based yarn knits a better sneaker for everyone

Published 08 July 2019

Posted by Stephen Holmes

Article tagged with: design, materials, materials developments, sportswear, coffee, materials information management, sneakers, finland

Recycled coffee beans are being used to create a new fabric yarn with some interesting properties you perhaps wouldn’t expect while downing your fifth Monday morning espresso.

The basis of footwear start-up Rens’ latest sneakers, the upper is knitted from a blend of coffee yarn and recycled polyester, before a waterproof nano membrane is laminated between the shoe upper and inner lining.

Aside from the waterproof properties of the membrane layer, the coffee yarn brings some other bonuses - its antibacterial, has micro-pockets in its structure that help trap and release bad odours and dry twice as fast as standard polyester, and it is resistant to fading by UV light.

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