K2 Cortex 105 Zonal Boa W Ski Boots 2026

The K2 Cortex 105 Zonal BOA® women's ski boot blends race-boot-level performance with easy entry and all-day comfort. Designed for intermediate skiers charging hard in freeride, big mountain and powder terrain, the Cortex 105 pairs a precision BOA® Fit System and Fastfit instep with a supportive EliteFit Sport liner, GripWalk outsoles and a heat-moldable MultiFit™ shell for a dialed, customizable fit that stays durable season after season.