K2 Cortex 105 Zonal Boa 105 2026

The K2 Cortex Zonal Boa is a women’s alpine ski boot engineered for confident, comfortable performance across the resort. Its 105 flex rating offers a supportive yet adaptable feel, while the Boa dial closure provides quick, precise fit adjustments that keep the foot locked in all day.

The Zonal Boa system works with the boot’s shell and liner to deliver a close, pressure-free fit that responds immediately to movement. Whether you are making crisp carved turns on groomed pistes or venturing into varied resort terrain, the boot transmits input cleanly and maintains stability through each turn.