Outer coating: 71% polyurethane / baking 65% polyester - 35% cotton Lining and inner sole: 100% microfibers from the circular economy Laces: 100% cotton Outsole: neolite 2.5 cm flat heel * 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).