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  • Innovative rigid spine connects cuff to shell without traditional rivets to smooth out the flex of the boots and provide lateral stiffness for performance on uneven terrain
  • Rigid spines allow the use of soft plastic in the cuffs and shells to damp vibrations in rough terrain and make boots easier to put on when it's cold
  • Top-notch liners boost precision and heat-moldable tongues absorb impacts and smooth vibrations
  • LuxFit INTUITION® liners offer a precise fit out of the box, but can be custom molded using a heat treatment
  • Asymmetric tongues enhance fit and offer a soft feel while you flex your knees into the turn, and adjustable spoilers allow you to personalize the angle of forward lean
  • Rubberized outsole pads between toes and heels increase traction when walking on rocks or riding on snowmobiles
  • The men's K2 SpYne 100 ski boots offer a medium flex suited to fast intermediate skiers


View all K2 Men's Downhill Ski Boots

REI membership


Best Use Downhill Skiing
Skill Level Intermediate
Ski Boot Flex Medium
Flex Index 110
Ski/Walk Position No
Liner Material EVA foam
Moldable Liner Custom Moldable
Last Width 100 millimeters
Gender Men's