Designed for advanced skiers who crave both precision and comfort, the K2 Cortex 110 BOA® delivers a mid-stiff flex paired with micro-adjustable fit. Featuring a single BOA® dial on the lower shell and dual cuff alignment, this boot gives you fine-tuned control with locked-in heel hold—no pressure points, no guesswork. Built on a low-volume 96–98 mm MultiFIT last, the Cortex 110 combines a 110 flex TPU shell with a heat-moldable EliteFit Plus liner, FastFIT instep, GripWalk soles, and an Energy Bolt Spine. Fully customizable and ready for the mountain, this boot offers responsive performance with a versatile edge.