Designed in collaboration with professional runner Stephanie Bruce, the Marathon, SB Classic sock blends refined style with PRO Compression&';s proven performance. Built for athletes dedicated to pushing boundaries, it offers exceptional comfort, targeted support, and durability for training, racing, and recovery. This sock reflects Stephanie&';s relentless spirit, making it a reliable choice for those who demand both function and elegance in their athletic gear. This knee-high Marathon sock offers true graduated compression, increases blood flow, and allows you to perform at your peak, recover faster, and feel better sooner. Our advanced design supports critical muscles and tendons, and our proprietary blend of materials wicks moisture for a comfortable fit that goes the distance. A favorite of endurance runners, nurses and medical staff, hospitality workers, and anyone looking for over-the-calf compression stockings.