K2 BFC 90 Mens Ski Boots A mellow flex rating, roomy fit, Hands Free Entry, Cushfit Comfort and a new, slimmer heat-shapeable shell mean your feet will be swathed in luxurious comfort, allowing you to focus on getting to those steeper runs on the upper mountain. Details Category All Mountain, Comfort, 2 Piece Ski Boots Collection BFC Product Weight(g) 1,985g @ 26.5 Flex Rating 90 Ski Boots Volume High Ski Boot Last (mm) 103mm Ski Boots Shell TPU Ski Boots Cuff Material PP Ski Boots Liner Cushfit Plus Ski Boots Strap 40mm Velcro Ski Boots Outsole GripWalk Best For Freestyle, Park, Piste Flex/Feel 4/10 Hands Free Entry: Dual material overlap for intuitive and easy hands-free exit and entry. CushFit Plus Designed with a blend of open-cell and EVA foam for an extremely comfortable, warm, and supportive fit. GripWalk The sole-binding system for better walking comfort and top skiing performance. GripWalk contains of a new co-polymer sole with rocker profile. The convex shape and ribbed tread of the rubber add a lot of walking comfort and provide a much better grip. Still, integrated pads made of stiff and rigid materials, enable great power transmission and more precise release function of the binding. GripWalk soles are the perfect tuning parts designed for selected premium ski boots and bindings.