Designed to be the ideal sock for a multitude of activities, the Swiftwick Flite XT Five Socks are perfect for keeping runners comfortable while running. AnkleLock Technology helps deliver added support to protect the foot and ankle during quick movements, making this sock great for those who like to hit the trails, the gym, the court or running a race. GripDry Fibre in the heel and forefoot and Swiftwick's signature Olefin fibre to help mitigate any slippage, hot spots, and blisters, as well as provide additional cushioning to lighten the blow of repetitive footstrikes. All in all, the Flite XT Socks are a high-performing sock that will do nothing but help get runners where they're going.