| Availability: | In stock |
The K2 Cortex 110 BOA Ski Boots are built for aggressive skiers who demand precision, power, and all-mountain performance from first chair to last run. Featuring K2’s all-new Cortex shell and the BOA® Fit System, these boots deliver a secure, evenly distributed fit with fast micro-adjustments and no pressure points.
With a 110 flex rating and a responsive medium-volume fit, the Cortex 110 BOA is designed for advanced skiers who want strong energy transfer and confident control across groomers, variable snow, and freeride terrain. The lightweight Cortex shell balances stiffness and reduced weight for powerful, stable performance at speed.
A fully heat-moldable shell and liner allow for complete customization, while GripWalk soles improve traction and walking comfort off the skis. Built for hard-charging skiers, this boot delivers precision, responsiveness, and comfort in one modern package.
✔ BOA® Fit System delivers fast, even micro-adjustable closure
✔ 110 flex provides powerful, responsive all-mountain performance
✔ Cortex shell construction enhances stiffness and energy transfer
✔ Medium-volume fit balances comfort and performance
✔ Heat-moldable shell and liner for fully customized fit
✔ GripWalk soles improve traction and walking comfort
✔ Lightweight design reduces fatigue during long ski days
✔ Strong heel hold improves control at high speeds
✔ Consistent pressure distribution eliminates hot spots
✔ Built for aggressive freeride and all-mountain skiing
Category
High-performance men’s all-mountain / freeride ski boots
Skill Level
Advanced to expert skiers
Flex Rating
110 flex for strong, responsive performance
Closure System
BOA® Fit System + upper cuff buckles + power strap
Shell Construction
Cortex lightweight performance shell with enhanced stiffness
Fit Type
Medium-volume performance fit
Liner
Heat-moldable performance liner for custom fit and comfort
Sole
GripWalk (ISO 23223) for improved traction and walking ease
Performance Characteristics
Strong energy transfer, precise control, and stable flex response
Terrain Use
Groomers, steep terrain, variable snow, and freeride conditions
Best For
Aggressive skiers who want a powerful BOA boot for high-performance all-mountain skiing
