• General Comfort technology, a special feature of Scholl shoes, with special features making them comfortable and durable. • Upper : Microfiber synthetic leather • Inside the strap (Inside Upper) : Synthetic leather • Upper sole (Footbed) : High quality EVA • Outsole (Outsole) : High quality EVA • Back height : 38 millimeters • Maintenance : Use a damp cloth to wipe clean and air dry completely. Do not put shoes in the sun, store in hot places or soak in water. • Scholl Official Website sells 100% genuine products from the brand.