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K2 Canada Inc.

K2 Cortex 140 Zonal BOA GW Mens Ski Boot 2026

K2 Cortex 140 Zonal BOA GW Mens Ski Boot 2026

$999.90
$999.90 $999.90
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Size: 24.5
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Quick Overview

The K2 Cortex 140 Zonal BOA GW combines a precise 98mm last with K2's innovative dual-zone BOA Fit System and GripWalk soles, delivering exceptional control and customization for aggressive expert skiers seeking maximum power transmission and comfort in a high-performance boot.

- Dual-zone BOA H4 Fit System enables independent adjustment of upper and lower zones for precise, micro-adjustable fit without pressure points
- LuxFit Pro liner with heat-moldable foam and asymmetric ankle pockets provides superior comfort and enhanced energy transfer
- PowerFuse Spyne technology with carbon-reinforced shell delivers optimal stiffness and responsive flex for precise power transmission
- Integrated GripWalk soles offer improved walking comfort and superior grip while maintaining maximum on-snow performance Read More
Ability Level Advanced, Expert
Adjustment System BOA Dial Adjust, 2 Buckle
Flex Stiff
Flex Index 140
Terrain All Mountain
Volume Low Volume
Walk Mode No
Width in mm 98
All specs
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K2 Cortex 140 Zonal BOA GW Mens 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

Two BOA® dials are better than one.

The all-new Cortex 140 Zonal BOA® combines cutting-edge performance technology with unparalleled precision to elevate your skiing experience. Built with a lower shell and an upper cuff fully integrated into the BOA® System, this boot redefines what’s possible on the mountain.

The Cortex 140 Zonal BOA® is the perfect mashup of your favorite race boot and freeride resort slayer—designed to dominate both the racecourse and untouched powder. Engineered for all-day comfort and relentless performance, it keeps you charging from first chair to last lap.

 

Specs Technology Size Chart

Take your skiing to the next level with the boot that’s as bold as you are. The Cortex 140 Zonal BOA®: Built to Perform.

SPECS

CATEGORY All Mountain, 2 piece
SKI BOOT LAST (MM) 96-98
FLEX 140
BOOT SOLE TYPE Gripwalk
ABILITY LEVEL Advanced-Expert

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.

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- MEN

 EU ADULT
284 24.5 6.5 39
294 25.5 7.5 40
304 26.5 8.5 41.5
314 27.5 9.5 42.5
324 28.5 10.5 44

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