evo.com | K2 Alpine Ski Boots > All the goodness of the hugely popular BFC 100 but with an added BOA(R) Fit System lower closure for a smoother pull over the instep and super simple on-hill tightness adjustments, the K2 BFC 100 BOA Ski Boots are a winner for those with wider and hard to fit feet. Cuff PP (Polypropylene) GripWalk ISO 23223 Outsoles Removable and interchangeable rockered soles designed to work with GripWalk binding systems for better grip and comfort while walking, standing, and hiking. Velcro - Non-tapered PVC - One Piece Last: 103mm A wider last for high volume feet 2 Adjustable Light Alloy | K2 BFC 100 BOA Ski Boots 2027 - 27.5