NikeCourt Breathe Men's Sleeveless Tennis Tank Men, Black, Size. stay cool the nikecourt breathe men's sleeveless tennis tank is made with lightweight, sweat-wicking fabric to help keep you cool, dry and comfortable. benefits dri-fit technology helps keep you dry and comfortable wide armholes and a vented hem allow a natural range of motion extended back hem enhances coverage durable rib neck and armholes product details fabric: dri-fit 85% polyester 15% cotton machine wash imported.