Feel the benefits of efficient thermoregulation and optimal muscle control and be convinced by the special edition in black and gold for the 20th anniversary. X-SOCKS® HELIXX GOLD 4.0 offer optimum climate comfort for enduring performance on long winter sports days. Precisely positioned functional zones specially designed for ambitious winter sports enthusiasts ensure stability and perfect power transmission from the foot to the sports equipment. Protectors for toes, heels and shinbone ensure that sensitive or particularly exposed areas are not affected by the cold or impact. The unique HeliXCoil system, which surrounds the calf in two concentric spirals, promotes muscle control, supports blood circulation and relieves the cardiovascular system.