VIBRAM® Ultralight sole, exclusively for K2, takes the concept of lightweight performance to the next level. The X-Frame sole design, in Vibram® Trek compound, delivers excellent traction, stability, and durability in heel, toe, underfoot, and around the sole periphery. Backcountry, snowpark, and pipe performance is enhanced, while weight is reduced by approximately 25% thanks to optimized compound density and thicknesses. A high level of shock absorbing and comfort is provided by Vibram® Gumlite 3D, an expanded exclusive material visible throughout Ultralight sole rubber X-Frame.