Unlike normal athletic socks, Physix Gear Stamina Socks are designed with gradient compression, the perfect performance gear designed for any activity where your legs are pushed to the limit. Physix Gear Stamina Socks are engineered with the latest arch to calf compression technology, offering a targeted foot to calf muscle support unseen on lesser quality socks. The results are a boost in circulation, delivering an enhanced oxygen blood flow keeping you going harder, for longer, and recovering faster.