BREATHABILITY AT ITS BEST The Nike Relay Women's Running Tank Top is made with super-lightweight Dri-FIT fabric and mesh panels for excellent ventilation from start to finish. Benefits Dri-FIT fabric to wick away sweat and help keep you dry and comfortable Rib scoop neck and wide armholes for comfort and a loose fit Mesh panels at shoulders and back for breathability Flat seams help reduce irritation due to chafing Product Details Fabric: Body: Dri-FIT 100% polyester. Mesh: Dri-FIT 100% recycled polyester. Machine wash Imported