Br4 is the new bio-based fabric family created by Brugnoli® with zero compromises between environment and performances. The raw material, EVO® is a 100% bio based polyamide. It´s sourced from castor bean, with no impact on food chain. Moreover, the castor bean growths mainly in arid areas and does not require much water or care. The result are bio-based fabrics, extremely comfortable and superstretch, with high performances.