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K2 Canada Inc.

K2 Cortex 105 W Zonal BOA GW Womens Ski Boot 2026

K2 Cortex 105 W Zonal BOA GW Womens Ski Boot 2026

Regular price $849.90
Sale price $849.90 Regular price $849.90
Size: 23.5

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Ability Level Intermediate, Advanced
Adjustment System BOA Dial Adjust, 2 Buckle
Flex Stiff
Flex Index 105
Terrain All Mountain
Volume Low Volume
Walk Mode No
Width in mm 98
All specs
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K2 Cortex 105 W Zonal BOA GW Womens Ski Boot 2026

Tech Features

  • BOA Fit System

    The BOA Fit System is a precise, micro-adjustable closure mechanism designed for performance footwear and gear, ensuring a secure and customized fit. It utilizes a combination of specially engineered dials, lightweight cords, and low-friction guides, allowing for quick adjustments. Renowned for its durability and reliability.

Specs

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.


Specs Technology Size Chart

Dial into the Cortex Zonal 105 BOA® and push your limits with a boot that never quits.


SPECS

CATEGORY All Mountain, 2 piece
SKI BOOT LAST (MM) 96-98
FLEX 105
BOOT SOLE TYPE Gripwalk
ABILITY LEVEL Intermediate-Advanced

TECHNOLOGY

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.

The BOA® cuff single cable design allows the tension to self equalize always giving a consistent pressure to the shin. The improved wrap allows for better power transmission and improved comfort even at high tension.

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.

Dual Cuff Alignment:

Dual sided cuff alignment for +/-2 degrees of cuff adjustment.

Energy Bolt 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.

Liner featuring Ski Edge Sensitivity Shims:

Ski Edge Sensitivity allow the skier to tune edge initiation of the ski.
SES Shims on Medial side of liner Cuff produce more inside edge angle. Skis feel more reactive and quicker to edge, excellent for slower more precise skiing.
SES Shims on the Lateral side of liner Cuff produce less inside edge angle. Skis feel more controlled and more stable, excellent for higher speeds.

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.

K2 BOOT SIZE CHART

SHELL LENGTH (MM) MONDO POINT

US SIZES- WOMEN

EU ADULT
264 22.5 5.5 36
276 23.5 6.5 37.5
284 24.5 7.5 39
294 25.5 8.5 40
304 26.5 9.5 41.5

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