K2's highest-performance shell design, utilizing shell walls of varying thicknesses and four different types of TPU to provide the ultimate combination of light weight and responsiveness.

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.

Pre Molded and Lasted with Ultralon heat moldable foams. Features an asymmetric tongue, pre molded ankle pockets, and a medium density collar & foam package yielding performance with added comfort.

A rivet-free technology that integrates the cuff and shell, putting less stress on the boot’s material and produces a smoother, progressive flex.