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K2 Mindbender 90C Alliance Skis · Women's · 2022 · 170 cm

K2 Mindbender 90C Alliance Skis · Women's · 2022 · 170 cm

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Ski length (cm)Fit & size guide
149 cm
156 cm
163 cm
170 cm
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Product details

The K2 Mindbender 90C Alliance Skis were a line of skis started by K2 in 2019. These skis are light and quick, yet are a nimble, all-mountain option for women skiers looking to be able to perform in a wide variety of conditions and terrain. The K2 Mindbender 90C is great inbound on the groomers and bumps, it's a capable carver, and it's also just as fun off-piste in the trees and powder. With the new Carbon Spectral Braid Technology incorporated into the ski, K2 was able to make the ski lighter without removing its ability to rebound while tackling any terrain on the mountain.

Key Features:

  • Carbon Spectral Braid – The carbon braiding is a carbon laminate weave over the core. The strings of carbon laminate are in an "X" pattern that is tighter and closer together underfoot, as well as out towards the shovel area of the ski. It then relaxes and becomes looser in the tail of the ski. This feature helps with the torsional rigidity (resistance to twisting) of the ski.
  • Rocker/Camber/Rocker Profile – The Rocker in both the tips and the tail makes the ski great and fairly easy for getting on edge. The camber allows for the ski to be playful and poppy.
  • Aspen Veneer Core – The light aspen core is combined with carbon boost stringers that run the length of the ski to assist with rebound and vibration dampening through the ski.
Age Group
Includes bindings
Model year
Ski Type
All Mountain
Skill level
Intermediate, Advanced
Rocker profile
Tail profile
Tail width (mm)
Tip width (mm)
Waist width (mm)
All mountain
Carbon, Wood
Expert Q&A
Quick, accurate answers from Curated experts to the frequently asked questions
Can you share a story of a happy purchaser whom you recommended this product to?
Veronika bought the K2 Mindbenders last year when she moved to Colorado. She got back to me after the session was over. She said "These ski's are so amazing, they crush all the big mountain riding in Colorado and they are really fun when it comes to free riding." Im so happy these new skis helped Veronika ski her best on her first year in Colorado.
Snowboard Expert Alex StewartSnowboard Expert Ethan naughtonSnowboard Expert Jacob Schladweiler
by Alex Stewart on November 5, 2022 · view 2 other answers
K2 Mindbender 90C Alliance Skis · Women's · 2022 · 170 cm
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Top reviews
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Brandon Wachter
Brandon Wachter
Verified ski expert
Reviewed Jul 13, 2022

An amazing all-mountain ski built around fun, balance, and performance! The versatile 90mm and all-mountain rocker shape provides decent flotation in powder, holds an edge well in variable conditions, and is a good length for your height. Easy to turn, and designed for the more aggressive skiers on the mountain!

Katie Mac
Katie Mac
Verified ski expert
Reviewed Jul 13, 2022

Great for intermediate to advanced skiers who like to ski a bit on groomers and a bit off trail. At 90mm underfoot these skis will be nice and quick edge to edge, but their shape also offers pretty good float in fresh snow!