With precisely integrated functional zones, the X-SOCKS® SKI ENERGIZER® LIGHT 4.0 optimize blood circulation and nutrient supply to the stressed muscles during winter sports. The foot is relieved, and the power transfer to the ski becomes more efficient. The Air-ConditioningChannel® 4.0 keeps the foot dry through constant air exchange. At the same time, technologies such as the Suppronation® bandage, as well as toe, heel, and shin guards, provide protection for sensitive or particularly exposed areas. The new integrated HeliXCoil system encircles the calf with two concentrically knitted spirals that stabilize the musculature, promote blood circulation, and reduce the risk of fatigue-related injuries.