Outer covering: 25% polyester / 17% cotton / 58% polyurethane Lining and inner sole: 100% microfibers from the circular economy Outsole: neolite 2.5 cm flat heel Zip and elastic ankle for easy donning. * 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).