If keeping it cool, calm and subtle is your style, the cognac collection is more than perfect for you! The combination of modern and vintage fairisle patterns make it easy to wear. MUK LUKS' Mark Slipper will keep your feet Warm, Comfortable with the 100% Polyester Furpa lining and insole. These slippers come in S (8-9), M (10-11) and L (12-13). Hand wash in cold water and lay flat to air dry. Imported.