Nubuck exterior coating: 100% microfibers Outer covering: 70% polyester / 30% cotton Mesh outer covering: 100% polyamide Embroidered side logo Lining: 100% recycled plastic fibers Removable insole: recycled cork covered with recycled polyester Outsole: 40% recycled rubber Laces: 100% recycled PET * 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).