K2 Cortex 120 Zonal BOA Ski Boots 2026
Unleash your best runs yet with the Cortex Zonal 120 BOA®—the ultimate blend of performance, fit, and comfort. Engineered for skiers who demand precision and power, this boot is your ticket to conquering every line with confidence.
The innovative Zonal BOA® Fit System ensures a snug, customized fit that adapts to your foot with micro-adjustable precision, delivering maximum comfort and eliminating pressure points. Designed for skiers pushing the limits, the Cortex Zonal 120 BOA® ensures seamless energy transfer from boot to ski, giving you unparalleled control and responsiveness.
Tested and trusted by Freeride World Tour athletes, this boot is built to handle the toughest challenges on the mountain. Ideal for skiers seeking a high-performance, low-volume boot that doesn’t compromise on comfort or ease of entry.
Step up. Dial in. Take charge.
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:
BOA® FIT SYSTEM: DIALED IN:
BOA® FIT SYSTEM: LOCKED IN:
BOA® FIT SYSTEM: CONFIDENT:
True LV Fit:
Fastfit Instep:
Dual Cuff Alignment:
Energy Bolt Spine:
GripWalk Outsoles:
Removable and interchangeable ISO 23223 alpine rockered soles collaboratively designed to work with Marker’s Grip Walk binding system for better grip and added comfort when walking and standing in boots, but doesn’t compromise the power transmission and release function between the boot and binding when skiing. Preinstalled.
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.
Full Lace Up Liner:
Lace up liner for the optimal liner fit
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
Non-Elastic Cam Strap - One Piece: