Oliver is a superbly comfortable slipper with a rubber sole. They feature a super soft padded lining for cozy and comfortable wear. These are fully adjustable touch and close slippers with K - L width fitting for extra room. The closed back supports your entire foot, and the strap adjustment makes them easy to slip on and off. Uppers: Textile, Lining: Textile, Sole: Other, Fastening: Riptape, Fitting: K/L (Super Wide).