evo.com | K2 Alpine Ski Boots > The K2 BFC 105 BOA W Ski Boots are for hard-charging women who want all the performance without the drama. With a stiff-but-smooth 105 flex, plush liner, and an easily adjustable dialed-in fit, they're ready to rip from sun up to sun down. Easy to slip on, tough to beat-these boots bring the heat and the fun, every single run. BOA(R) Fit System The BOA(R) Fit System provides a performance fit engineered to enhance feel and responsiveness while reducing pressure points by incrementally modulating the Alpine boot closure with precise micro-adjustments. Flex: 105 A stiff flex suitable for advanced to expert level skiers. 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. Shell TPU (Thermoplastic Urethane) Low Friction Pivot | Women's K2 BFC 105 BOA W Ski Boots 2026 - 25.5 | Plastic