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Ditch those sloppy, soft-flexing boots you bought off a friend and upgrade to the K2 Spyre 100 HV Ski Boots. Featuring K2's Powerfuse Spyne and Energy Interlock Technology that integrates the cuff and shell to create a smoother flex, you can lean into the Spyres without feeling like you're hitting a wall. So go ahead and venture off onto the steeps, find your balance in the deep, and get some grip on hardpack in this customizable beaut of a boot; the K2 Spyre 100 HV Ski Boots are designed for all-mountain exploration without the vice-like feel of race boots, so you can stay out longer and be happier.
Last: 102 mm – A roomy forefoot and relaxed instep for all-day comfort for average and wider feet.
Custom Thermo Shell – The shell can be heat molded, punched, ground and customized with your favorite boot fitter for optimized comfort and performance. The shell can be widened up to 6 mm with this process.
FitLogix™ Design – A design philosophy that puts your skiing first, optimizing foot comfort and boot performance.
Power Wedge & Collar – Offer varied forward lean and upper cuff support.
Navicular Punch – A bump is pre-formed in the navicular area of the medial ankle where many skiers experience pressure.
Asymmetrical Toe Box – K2 matches the toe box to the natural curvature of your toes for a more precise and comfortable fit.
Flex: 100 – A medium to stiff flex most suitable for intermediates and lightweight experts.
LuxFit Intuition® Liner – A lasted, thermo moldable liner that gives you a perfect full custom fit.
Moldable Asymmetric Tongue – Offering a left / right specific lower leg fit and is heat moldable for ultimate customization.
Lasted Liner – Lasted liners are formed around a standard foot shape for improved out of the box comfort.
Cuff / Shell – Polyurethane
Energy Interlock – A rivet-free technology that integrates the cuff and shell of the boot. The Interlock stretches when the boot is flexed forward, and the energy is released throughout the turn, creating a smoother, more natural flex than riveted designs.
PowerFuse SpYne – A rear co-injected “Y” shaped design that adds strength and power to the Energy Interlock, the PowerFuse SpYne maximizes fore/aft flex efficiency and lateral stiffness for sustained performance and responsiveness in all terrain. Because of the SpYne, we are able to optimize materials in the cuff and shell, eliminating excessive vibrations in rough terrain.
Dual Adjustable Cuff Alignment – Adjust +/- 2.2 degrees on medial and lateral sides for a total range of 4.4 degrees. This enables adjustment to the lower leg angle for maximum comfort and performance.
4 6060-T6 Aluminum Buckles – Extruded Hardened aluminum alloy build with a minimalist lightweight design.
40mm Velcro Powerstrap
Replaceable Outsoles – Dual-injected Thermo Plastic Rubber (TPR) with Thermo Plastic Urethane (TPU) increases the life of your boots and provides secure footing whether walking on rock, ice, or stairs.
Padded Mid-Grip – Duel Injected Thermo Plastic Rubber (TPR) for added grip and traction while walking on rocks or riding on snowmobiles.