The ULTIMA 3.0 WP is the beginning of our very important journey to develop environmentally conscious, sustainable products without compromising performance. The upper material is made from 100% recycled plastic bottles. In fact, each pair of lightweight, waterproof uniform shoes is made from 2.32 recycled 380 ml plastic bottles. The total percentage of recycled textiles on the upper is 76.62%. We are able to identify, certify and quantify the exact percentage of 100% recycled material used in the manufacture of our products.