Aero Long Sleeve With X-VENT fabric technology, the Aero Long Sleeve combines a double-knit sweat-wicking body and lightweight breathable mesh back to keep you dry and cool so you can perform in comfort. Product details Set-in long sleeve top Double-knit moisture-wicking fabric main panel Lightweight breathable mesh back panel Reflective logos and trims Stay Cool: Lightweight mesh back panel engineered to enhance breathability and ventilation. Quick-Drying: Double-knit constructed main panel leverages an inner layer to transport sweat away from skin and an outer layer to disperse moisture on surface, delivering rapid moisture management. Be Seen: Reflective logos and trims on front and back hem provide 360 visibility in low-light conditions. Fabric Composition: Main: 100% Recycled Polyester, Mesh: 100% Recycled Polyester