The K4 is a winter hiking boot designed for extreme conditions and altitudes of up to 4000 m.

The shoe is compatible with automatic crampons, suitable for crossing glaciers and ice climbing.

A built-in upper gaiter with a waterproof zipper ensures that snow and moisture will not accumulate in the shoe.

The shoe has a GORE-TEX Duraterm membrane, which ensures that your foot will stay dry and warm even in the most extreme conditions. The Vibram Teton sole provides excellent traction on a variety of terrains, and the sole is reinforced with fiberglass and aluminum foil for stiffness when using crampons.

The three-level lacing system ensures that the shoe fits your foot perfectly and will not move while you walk.