CW-X Women's Mid Rise 3/4 Capri Stabilyx Compression Legging Tights. 80% Coolmax Polyester / 20% Lycra Spandex Imported Patented EXO-WEB provides optimum targeted joint support to the hip, pelvis and knees Patented EXO-WEB helps muscles and ligaments band together to stabilize knee joint Coolmax Fabric helps to keep body cool and dry by pulling moisture away from the skin. UPF 50+ for UVA/UVB protection Double reinforced waistband with flat drawcord and inner key pocket Refer to size chart for ideal sizing 80% Nylon/ 20% Lycra Provides Targeted Support to the knee and core joints and muscles 80% Coolmax/ 20% Lycra Helps to keep the body cool and dry, pulls moisture away from the body and carries it to the outside of the tight