From the BIG MOUNTAIN series by KILPI comes the men's jacket JACKYL with a three-layer SIBERIUM NANO membrane, which is the optimal solution for the most demanding mountain enthusiasts who do not want to be limited under the most extreme conditions. Truly, this is a garment that feels perfect when worn, with a wonderful touch, extremely lightweight, and incredible comfort as it is stretchy in all directions. Ideal for alpine tourism, cross-country skiing, and other outdoor activities.