Engineered for advanced to expert skiers, the K2 Cortex 120 BOA® delivers pro-level performance with a dialed-in fit that adapts at the push of a button. Featuring a dual BOA® Fit System (shell + cuff), this boot provides micro-adjustable control for a snug, locked-in feel—no pressure points, no fuss. Built on a low-volume 96–98 mm MultiFIT last and fitted with a 120 flex TPU shell and cuff, the Cortex 120 balances stiffness with comfort. It’s equipped with the EliteFit Sport liner, FastFIT instep, GripWalk soles, and an Energy Bolt Spine—all working to ensure precision, power, and walkability. Fully heat-moldable and fully customizable, this boot is ready to elevate your all-mountain performance.