The iconic Sundance II woman's boot features exposed sheepskin and is unmistakably UGG Australia. 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. 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. 1.Approximate boot shaft height: 13" 2.Approximate mid-calf circumference: 12" 3.Heel height: 1.25" 4.Twin-faced grade A sheepskin with suede toe and heel guards 5.Removable and replaceable comfort system insole is made of sheepskin, latex and foam for "ultra" comfort with a Mylar sockliner for warmth. 6.Molded rubber lug cup sole for strength and durability on rugged surfaces.