The Nike Pro Dri-FIT Top layers you in lightweight fabric with breathability built into heat zones to keep you cool and dry from warmups through cool downs. Stretchy fabric made with at least 75% recycled polyester fibers lets you move freely. Built-In Breathability Mesh over high-heat areas at the back, sides and underarms lets air flow to help keep you cool when the action heats up. Sweat-Wicking Power Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable.