The UGG Adirondack Boots II Chestnut offers a stylish approach to dressing for cold weather. The waterproof leather protects while the sheepskin lining and cuff provides warmth and comfort. This boot features a removable/replaceable sheepskin insole and an exclusive Vibram outsole designed specifically for UGG Australia gives stability in wet conditions. UGG Adirondack Boots II: Waterproof full grain leather upper. Removable/replaceable sheepskin sockliner that naturally wicks away moisture and helps keep feet dry. Exclusive Vibram outsole designed. specifically for UGG Australia utilizing the TCI wet/snow compound. Repeating lug pattern maximizes surface contact and provides flexibility at the foot's natural flex points. Approximate boot shaft height: 8(6 cuffed). Approximate boot circumference at opening: 14. Available in whole sizes only. If between sizes, order a size up. By UGG Australia; Imported.