The K2 Cortex 105 BOA® W is designed for advanced female skiers looking for a boot that is both responsive and comfortable. With a stiff flex rating of 105 and a slim 96-98 mm volume, it delivers direct energy transfer and precision worthy of a competition model. Whether you're tackling powder, big mountains, or freeriding at full speed, this boot stays on track while offering a consistent and secure fit.

Comfort and support for performance

The Cortex 105 BOA® W features the BOA® adjustment system, which allows for micro-adjustable and uniform tightening, eliminating pressure points. Its EliteFit Sport liner wraps the foot with precision while remaining comfortable to wear over time. The Fastfit zone at the instep makes it easy to slip the boot on and off, while the wide 45 mm cam strap ensures a firm collar hold for optimal control.

Ready for all your mountain adventures

Built with a rugged TPU upper and lower shell, the Cortex 105 BOA® W is impact-resistant and winter-proof. Its GripWalk ISO 23223 outsoles offer a more natural walk and secure grip in snow and on hard surfaces, without compromising compatibility with your alpine bindings. With its MultiFit™ last developed in collaboration with BOA®, it adapts to different foot shapes in a range from 96 to 98 mm.

With the K2 Cortex 105 BOA® W, every descent becomes a demonstration of power and control. Ski with precision, comfort, and confidence from morning until your last run.