The Classic Slip-On features a leather upper that develops a distressed finish with wear. It is constructed with a lightweight sugarcane EVA outsole for traction and comfort. crackle leather upper 17mm UGGplush™ wool and TENCEL™ Lyocell blend lining 10mm sheepskin insole sugarcane EVA outsole or Treadlite by UGG™ EVA outsole textile binding heat-embossed UGG® logo