Outer covering: 72% polyurethane / 22% polyester / 6% cotton Antiperspirant inner coating: 100% microfibers from the circular economy Removable insole: 100% microfibers from the circular economy Outsole: 40% recycled rubber Laces: 100% recycled PET Embroidered side logo Also discover the new plant-based version made from recycled cereals, the model WINTON - CORN BLUE WHITE * All our models are vegan, labeled PETA APPROVED VEGAN and certified OEKO TEX 100 (materials guaranteed to be free of toxic products for the body and the environment).