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K2 Mindbender 90 Alliance Ski Boots

K2 Mindbender 90 Alliance Ski Boots

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Product details

K2's Mindbender® 90 Alliance Ski Boots are for women who want optimal performance inbounds and in the backcountry. These boots are lightweight and equipped with all the touring capabilities. They are 90-flex boots that best suit intermediate and advanced skiers. They also have a 100mm last, which fits most women with an average foot width.

Key Features:

  • Shell – The PowerLite Shell is made with lightweight materials while maintaining agility, stability and power, making them light on the hike up and powerful on the ski down. They also have Powerlock Spyne, which is a Y-shaped reinforcement on the back of the boot to add strength and lateral responsiveness to maximize the efficiency of each flex.
  • Adjustability – This boot has adjustable forward lean (10-17 degrees), ski and walk mode, four micro-adjustable alloy buckles, and a 40mm VELCRO® power strap for extra customization to ones liking.
  • Liner – The liner of this boot is LuxFit Pro Tour, which has lacing, comes pre-molded, and is also fully heat moldable. Its dense collar and asymmetric tongue give the boot great flex and comfort.
Age Group
Model year
Ski boot type
Alpine touring
Walk/tour mode (Y/N)
Skill level
Intermediate, Advanced
Flex index
Forefoot width (mm)
Liner type
Liner description
LuxFit Pro Tour
Number of buckles
Boot sole type
Sole length (mm)
K2 Mindbender 90 Alliance Ski Boots
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Top reviews
Would an expert recommend these for you?
Parker Braun
Parker Braun
Verified ski expert
Reviewed Jul 13, 2022

K2 makes some really solid ski boots and these mindbenders are no different. At 90 flex they are exactly what you're looking for in terms of comfort, performance, and warmth.

Sophie Louise
Sophie Louise
Verified ski expert
Reviewed Jul 13, 2022

Mindbender is K2 more advanced women boot. 90 flex will be comfortable yet strong for your stats. Average foot width and lightweight shell make this perfect for the intermediate to advance skiier looking for a strong boot to charge hard with.