Consider the PUMA by X-BIONIC® Run Triple Helix Long the runner’s power socks. Gradual compression combats gravity, accelerating return of blood flow back to the heart to improve blood circulation and nutrient supply. Gradual compression generated by the Smart Compression Zone improves regeneration and reduces risk of thrombosis. With a refined system of protectors and cushions, and new HeliXcoil Technology, these socks give your feet maximum protection throughout your entire run. Combined with the AirConditioning Channel and AirCool Stripes, the ventilation system pumps warm, moist air out of the shoe with every step.