QUICKENS BLOOD FLOW, CALMS MUSCLES. The compression socks for cyclist and tour-biker. The gradual compression combats gravity, accelerating the flow of venous blood back to the heart. This improves blood circulation and nutrient supply, relieves the strain on the cardiovascular system and lowers the pulse rate. The energy this saves is available to you as an additional reserve during physical exertion. In addition, the gradual compression, generated by our Smart Compression Zone improves regeneration and reduces the risk of thrombosis. With a refined system of protectors and cushions, the Bike Energizer socks give your feet a 13-way protection. The ventilation system with the patented AirConditioning Channel® in conjunction with the AirCool Stripes and the anatomical right-left foot bed, pumps warm, moist air out of the shoe with every step and sucks in fresh air right under your sole. This keeps feet dry and therefore resistant to blisters and chafing.