MEN'S RUNNING SOCK UYN RUNNER'S ONE

Unlike classic socks that use a double cuff construction to stay firmly on the calf, the revolutionary ZEROCUFF technology uses a special construction that allows the sock to have a perfect hold without tightening the leg. The elimination of any restriction on the calf improves circulation increasing performance. At the same time, the increased blood flow helps maintaining a constant temperature to the feet and preventing swelling even after long sessions of intense training.