Boosts the traffic relief muscle. Sore feet after a day of skiing? Not with the new X-SOCKS® Ski Patriot Energizer technology. The gradual decrease in compression between the ankle and knee obtained by the Smart Compression Zone process accelerates venous return. This improves blood circulation and nutrient distribution. The cardiovascular system is relieved, the pulse slows. In addition, this gradual compression accelerates tissue regeneration and reduces the risk of thrombosis. The duct AirConditioning Channel® on the inside of the sock provides a permanent ventilation under the arch. At the same time, the patented X-SOCKS® reinforcements Ski Energizer complete protection of your foot.