If keeping it stylish, calm and subtle is your style, the taupe grey MUK LUKS John Slipper is more than perfect for you! The combination of modern style makes it easy to wear. MUK LUKS John Slipper will keep your feet warm and comfortable all day long. 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.