versatile and ventilated. the nike league reversible men's sleeveless shirt is made with sweat-wicking mesh fabric to help you stay comfortable, while the reversible design offers two looks in one.. benefits. dri-fit fabric to wick away sweat and help keep you dry and comfortable. fully reversible for the versatility of two looks in one. allover mesh for breathability. product details. fabric: dri-fit 100% polyester. machine wash.