K2 Cortex 105 BOA Ski Boots - Women's 2026
Model Info
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Product Info
The K2 Cortex 105 BOA Ski Boots are built for women who charge hard, shred harder, and make it look dang good. With the BOA Fit System dialing in all-day comfort and performance, you can rip, slash, carve, and cruise without missing a beat. From first chair send-fests to après laughs, these boots are for the ladies who bring the fire every run.
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.
True LV Fit
Dual Cuff Alignment
Adjustable Rear Cuff Spoiler
Fully Heat Moldable
Flex
Flex: 105 – A stiff flex for advanced to expert skiers.
Liner
EliteFit Sport Liner – Full lace up liner with an adjustable tongue.
Full Lace Up Liner
Ski Edge Sensitivity Shims
Shell Materials & Design
Energy Bolt Spine
Shell – TPU (Thermoplastic Urethane)
Cuff – TPU (Thermoplastic Urethane)
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.
Power Strap
Non-Elastic Cam Strap - One Piece
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
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Ability Level:
Intermediate-Advanced
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Ability Level
Intermediate-Advanced Whether you’re a progressing intermediate exploring new runs and terrain, or an accomplished rider seeking new thrills, the majority of skiers and snowboarders fall into this level. Intermediate to advanced skis and snowboards may be somewhat wider or stiffer than beginner-intermediate skis and snowboards, usually with a stronger wood core and sandwich sidewall construction. Intermediate to advanced boots and bindings range from softer flexing freestyle options to stiffer choices built for stability at speed.
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Ski Boot Flex:
Stiff
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Forefoot Width:
98 mm
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Forefoot Width
98 mm Forefoot 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: Semi-Custom
- Flex Index: 105
- Boot Sole Type: GripWalk (ISO 23223)
- Includes Tech Fittings: No
- BOA®: No
- Number of Buckles: 2 + BOA Lower Shell
- Series: Cortex
- Warranty: 1 Year
| Size | 22.5 | 23.5 | 24.5 | 25.5 | 26.5 | 27.5 |
| Indiv. Boot Weight (g) | 1783 |