2XU, Non-Stirrup Guard Targeting the calf muscle - a major driver in venous return from your lower body, calf guards can be worn during competition or used simply as a recovery tool. With similar benefits to compression tights but in a smaller package, calf guards improve circulation and protect against leg fatigue and muscle soreness. Essential training and recovery tool for people who need extra support through their calf region. Available with a foot stirrup for sports demanding shin protection or when support for the achilles region is required. 2XU Compression Sizing Chart Check out the Jon Says Gabe Says Product Review Blog