This versatile top can be used as an over-layer or under-layer. 2 layers of Dri-FIT high compression fabric help keep you dry and supported. Seamless construction with a marrow-style stitch helps prevent chafing and improve durability. Heat transfer labeling helps keep you cool. Swoosh logo detailing for added style. 85% polyester and 15% spandex. Machine wash cold, line dry.