Nike Pro Men's Sleeveless Training Shirt, White/Matte Silver/Black, Small The Nike Pro Cool Sleeveless Fitted Men's Shirt is made with wide armholes and breathable stretch fabric for a nonrestrictive feel and performance comfort on the field and in the gym. Dri-FIT fabric helps keep you dry and comfortable Wide armholes and ergonomic seams create a natural feel Back mesh panels offer superb breathability Flat seams move smoothly against the skin