Rely on Ugg to fulfill all your harsh-winter needs with these waterproof, wool-lined Adirondack II boots, now updated with a range of new high-tech benefits. The sole is designed to stay flexible in freezing temperatures while also cushion and insulate for warmth and supreme comfort. Quilted, non-wicking nylon provides extra-dry qualities and the dual-intensity EVA midsole gives stability and support as you trek through the mountains, snow-covered meadows, or icy city sidewalks.