The Ultradrive sports an easy and innovative walk/ski toggle integrated into an upper buckle, which also ratchets for terrific leverage. gripes: We want that walk/ski feature in a higher-performance model-with a few tweaks, this could be an awesome backcountry boot. props: It feels like you're wearing bedroom slippers, yet there's just enough precision to power your edges. bootfitters' take: An expandable upper cuff accommodates large calves better than most men's boots. Wider forefoot with average toe-box room.