Birkenstock Mules combine a leather upper with a rubber sole for comfortable, easy-to-wear slip-on shoes. Product image is indicative. Key attributes: White | Bianco | Leather | Rubber sole | Slip-on | Composition & care: Upper: Leather | Lining: Leather | Sole: Rubber | Wipe clean with a damp cloth. Do not machine wash. Use a suitable leather conditioner as needed.