Nubuck outer coating: 47% PET / 53% polyester Outer mesh coating: 100% recycled PET Outer covering: 71% polyester / 29% cotton Embroidered side logo Interior coating: 100% recycled PET 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).