Jordan Stay Cool Compression Sleeveless Training Shirt Mens Style : 642354 Mesh panels in back help you stay cool during training, while flat seams help to limit distractions. Dri-FIT fabric wicks sweat away to keep you dry and comfortable. Compression fit provides a locked-in, supportive feel. Four-way stretch fabric for a full range of motion. 84% recycled polyester/16% spandex.