Cute. In a hyper-technical-bottom-package kind of way. Built on the snow-specific Venture with ColdHold Compound sole, the 8-inch Pow Pow utilizes UltraDry™ waterproofing and 400 grams of 3M™ Thinsulate™ Ultra Insulation for extended comfort in harsh conditions and feature a molded rubber heel kick. Of course the boot doesn't show it: all the geekery is stylishly contained inside a lightweight outer and faux shearling lining for a distinctive après-with-attitude flair. The ColdHold compound sole is a dual density rubber optimized for superior traction in cold environments. Harder, sharper lugs line the perimeter of the sole offering positive bite into snow and frozen turf while the center lugs remain pliable in cold temperature, conforming to irregularities of terrain. The UltraDry™ waterproofing system combines a moisture management lining with waterproof components for dry, long-lasting comfort and performance. Fit Profile: The Pow Pow UltraDry™ is built on the Perpetuum last. The last is formed on a straighter line for people with flatter feet, with a broad toe box, tailored instep, and a lower heel volume than the Arc Tempo's medium volume. The last is stable and comfortable for going the distance, and the broad toe box is ideal for endurance activities because it allows the forefoot to expand naturally. A tailored instep locks the foot securely in place to minimize foot movement, reducing friction. The Perpetuum last works great on your feet all day, whether running, hiking, or standing.