For more speed, safety, and comfort, you benefit from innovations based on 20 years of experience. With the X-SOCKS® SKI CONTROL 4.0 WOMEN, you gain crucial milliseconds of advantage as a competitive athlete or ambitious recreational skier. The new Suppronation® footbed provides firm support, corrects misalignments, and reduces the risk of injury. The innovative HelixCoil system surrounds your calf bone as a concentric double spiral and exerts a muscle-stabilizing effect. The ISO-Blocker additionally reduces localized pressure on the foot. But the foot is not only well protected. Thanks to 3-ExpandLadiesStripes and Narrow Arrow Construction, slimmer women's feet benefit from a perfect fit.