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Strategically combined heat-moldable foam and traditional foam liner.
Dual-injected soft and hard Thermo Plastic Urethane (TPU) for secure footing and increased life of the boots.
A removable spoiler for adjustable forward lean angle from 12 to 14 degrees.
Powerfuse Spyne: A rear co-injected "Y" shaped support that adds strength and power to the Energy Interlock in order to maximize fore/aft flex efficiency and lateral stiffness for responsiveness in every type of terrain.
USB rechargeable Thermic Heat Technology to keep feet warm
High performance in a medium flex, the new Spyne 120 bridges the gap between the 130 and 100 flexes in the Performance Collection. Designed with the advanced skier in mind, the smooth flexing Spyne 120 drives skis with power and finesse. Now available with optional USB rechargeable ThermicÂ® heat technology built in to the LuxFit PRO liners, cold, numb toes no longer keep you from skiing until last chair.
K2 Spyne 120 Heat Ski Boot - B073ZMC5LC