This kind of leg sleeve is designed to prevent accidental injuries, such as scratch; to improve venous return to enhanced blood circulation. This new brand volleyball, basketball knee-pads which made by using COOLOMG unique high-end compression technology can increases performance through improved muscle efficiency, so increased muscle support; reduce muscle soreness; enhanced warm-up; Improved leg power and vertical jump power through enhanced proprioception. This is a great choice for you to try our padded knee long sleeve.