K2 Cortex 105 Zonal BOA - Women's 2026
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Unleash your potential with the Cortex Zonal 105 BOA® W, designed to deliver a perfect blend of performance, comfort, and precision for the serious rider. Whether you’re carving down the mountain or conquering challenging terrain, the Zonal 105 provides the support you need to stay in control all day long.
The Cortex Zonal 105 isn't just about speed and precision; it’s designed for women who demand the best in fit and function, giving you an edge on the slopes without sacrificing ease of use. Dial in your perfect fit and experience a boot that performs as hard as you do.
Dial into the Cortex Zonal 105 BOA® and push your limits with a boot that never quits.
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| FIT |
Dual Cuff Alignment - Dual sided cuff alignment for +/-2 degrees of cuff adjustment. Fastfit Instep - Softer TPU material is used in the instep area of select models' shells for quick and easy entry and exit. True LV Fit - All new low volume last featuring our narrowest heel and ankle while maintaining a little room in the forefoot and toe box for an all day performance fit. |
| FLEX |
Flex 105 - Advanced to Expert Energybolt SPine - A bolted rear cuff gives Cortex excellent rearwards support and a precise forward flex. The top bolt can be removed to allow for a more progressive cuff response and slower rebound. |
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SHELL MATERIAL |
Energybolt SPine - A bolted rear cuff gives Cortex excellent rearwards support and a precise forward flex. The top bolt can be removed to allow for a more progressive cuff response and slower rebound. |
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LINER |
EliteFit Sport Liner – Full lace up liner with an adjustable tongue. Ski Edge Sensitivity Shims - Ski Edge Sensitivity allow the skier to tune edge initiation of the ski. Adjustable Liner Tongue - Tongue is attached with velcro in the tow box and can be adjusted to help provide the optimum fit across the top of the foot |
| POWER STRAP |
Cam Booster Powerstrap |
| BUCKLES |
BOA® Fit System on the Cuff and Shell: The BOA® Fit System shell delivers dialed in performance and a micro-adjustable precision fit. It consists of three integral parts: a micro-adjustable dial, lightweight yet extremely strong laces and low-friction lace guides, which are applied in uniquely designed configurations to improve the fit and performance of the boot. H+i1 DIAL - Provides micro-adjustable, precision fit and quick release, with quality and durability guaranteed. The BOA dial platform features a breakaway design engineered to eject the dial cartridge upon severe impact without damaging the system, allowing skiers to pop the dial back into the bayonet midmountain. In the unlikely event that the system is broken, it can be easily repaired and replaced. |
| SOLE |
GripWalk ISO 23223 Outsoles |
SPECS |
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| BEST FOR |
Freeride, Big Mountain, Powder |
| LEVEL |
Advanced - Expert |
| LINER TYPE |
Custom |
| FLEX INDEX |
Stiff |
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