Why is it sustainable?
Su is a stool made of all sustainable materials. The wood used for its legs is reclaimed. The seat instead is made of eco-concrete, an environment-friendly version of this material. Instead of relying on the extraction of big quantities of stone and sand, this sustainable concrete is a mix of crushed recycled glass bottles and calcium sulfoaluminate cement (CSA). The difference with standard concrete is essentially invisible to sight, but its footprint is substantially lower!