UGG Sundance II 5325 boot features exposed sheepskin and is unmistakably UGG Australia. The Sundance II has reinforced suede heel and toe guards for increased durability,as well as a rubber lugged outsole for extra traction and slip resistance.This boot is extremely comfortable, made with the finest twin-faced sheepskin and features a removable/replaceable fleece insole and a mylar lining that provides extra warmth.