The Mid-Reign is a new lightweight, supportive ankle sock that features reinforced, double terry padded footbeds. It is composed of a special multi-blend of materials (85% Cotton, 12% Polyester and 3% Spandex) that provides the perfect tension and responsiveness to help keep the sock where they belong...on your feet. The biggest performance feature added to this sock is the built in support. We added individualized arch supports; your left and right foot are different from one another. So our arch supports are specifically designed for each foot. We also have a hidden reinforcement strap made to support the ankle and keep the sock in place during light to strenuous activities. We added a moisture wicking design, to help maximize breathability.