Faux leather exterior covering: 70% cotton / 30% polyester Textile outer covering: 71% polyester / 29% cotton Interior 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 * 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).