High performance compression band made from patented materials in 8 countries around the world, Vineer Bantage. Promotes blood circulation that caught in the calf by actively moving the toes up and down after wearing. The material combines high compression and elasticity, so you can wear it without causing any stress and movement during exercise. You can use it for a long time without feeling stress or uncomfortable tightness. Patented design for durability and 1 year warranty against degradation of compression