Add to Favorite Sellers. Sign up to Newsletter. 2018 K2 Spyne 120 HV Mens Ski Boots. Packed with features with a medium flex. Power Strap: 40mm PowerCinch. Shell: Custom Thermo Shell. Energy Interlock, Powerfuse Spyne, Power Wedge. Liner is not heated. We sell skis, snowboards, helmets, sunglasses and goggles and accessories. ASOGear buys directly from the manufacturers and is dedicated …