K2 Cortex 120 Zonal BOA Ski Boots 2026

Product Details

Fit

MultiFIT Last: 96-98 mm– The MultiFit Last was developed in conjunction with the BOA® Fit System to accommodate a variety of narrower foot shapes ranging from 96mm to 98mm.

FastFIT Instep– Softer TPU material is used in the instep area of select models´ shells for quick and easy entry and exit.

Dual Cuff Alignment

Fully Heat Moldable

Adjustable Rear Cuff Spoiler

Flex

Flex: 120– A stiff flex for advanced to expert skiers.

Liner

EliteFit Sport Liner– Full lace up liner with an adjustable tongue.

Ski Edge Sensitivity Shims

Shell Materials & Design

Shell– TPU

Cuff– TPU

Energy Bolt Spine

Buckles

BOA® Fit System– The BOA® Fit System provides a performance fit engineered to enhance feel and responsiveness while reducing pressure points by incrementally modulating the Alpine boot closure with precise micro-adjustments.

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.

Power Strap

Cam Booster Powerstrap

Sole

GripWalk ISO 23223 Outsoles– Removable and interchangeable rockered soles designed to work with GripWalk binding systems for better grip and comfort while walking, standing, and hiking.

Specs

• Ability Level: Advanced-Expert More

  Ability Level

  
  
  Advanced-ExpertWhether you charge the steepest lines, hit the biggest jumps in the park or carve with race-like precision, advanced to expert level skis, snowboards, boots and bindings are for the more aggressive rider. In skis and snowboards, you´ll often find layers of metal, carbon or other stringers for rigidity and power, while advanced to expert level boots and bindings are usually on the stiffer side of the spectrum for rebound and precision steering.
  
  
  
• Ski Boot Flex: Stiff
  
• Forefoot Width: 98 mm More

  Forefoot Width

  
  98 mmForefoot width, or last, is the reference width for this model based off shell size 26/26.5. Larger or smaller shell sizes will diverge from this reference width in increments of 2mm for every full size.
  
  
• Liner Type: Custom
• Flex Index: 120
• Boot Sole Type: GripWalk (ISO 23223)
• Includes Tech Fittings: No
• BOA®: Yes
• Number of Buckles: Dual BOA
• Series: Cortex
• Warranty: 1 Year