Winter ankle shoes: The Loap SONOR is ideal for everyday wear to school, for walks around town and for leisure. They have a durable upper made of high quality polyurethane and fabric. They fasten quickly and comfortably with two Velcro straps. The faux fur lining keeps your feet comfortably warm. The removable insole is also made of warm fleece and also of EVA foam, which perfectly absorbs shocks. The outsole is made of thermoplastic rubber - a type of high-quality synthetic rubber, highly resistant to pressure. The material also makes the outsole more durable.