2XU is legendary for its compression clothing, and the cornerstone of its reputation is arguably the Compression Performance Run Socks. With a compressive fabric that enhances blood flow, reduces damaging muscle vibration, and minimizes fatigue, these socks have been proven by elite athletes the world over. These are no hoax you've got to try them for yourself to believe how effective they really are.2XU's PXW compression fabric is used throughout to provide added support to your calves, shins, ankles, Achilles, and the arches of your feet. As you're most likely aware, this added compression helps to force blood up and out of your feet and lower leg, enhancing circulation. That means that more freshly oxygenated blood will circulate, helping your muscles to work at maximum efficiency. Your muscles can vibrate under heavy exertion, leading to muscle strain, and these compression socks protect against these vibration related injuries. This characteristic makes them especially effective for those struggling with calf injuries, or shin splints. The seamless design means that chafing is a non issue. Just remember, these need to be snug in order to provide you with the full benefit.The 2XU Compression Performance Run Socks are available in six sizes, from X Small, to XX Large, and in the colors Blackblack, Forest Green, Vibrant Blueyellow, and Whitevibrant blue.