Stitching Concrete by industrial design graduate Florian Schmid is a collection of stools made from a material called Concrete Canvas. It consists of cement layered between fabric and a PVC backing that can be manipulated for a few hours when wet and then hardens.

Schmid shapes the Concrete Canvas and then stitches the edges together with bright colored threads, making the stools look like stitched pieces of folded fabric.

From the designer:

Stitching Concrete combines the softness of cloth with the stability of concrete. Once brought in the final shape, you just have to water the material and within 24h it will alomst harden out completely. The challenge was to get into the material and bring it from its rawness to something new. Approching trough patterns, origami and stitchings a unique series of stools got born. Waterproof, fireproof, resistant against UV, durable. The fibre reinforcement makes it strong and the cloth gives back a warm atmosphere.

Via dezeen.com