The Nike Men's Running Top features sweat-wicking Dri-FIT technology to help keep you dry and comfortable during your run, while a bold centre USA graphic adds style.Features: Dri-FIT technology helps keep you comfortable and dry Centre-back audio loop secures cords Country-specific graphic is screen printed on the chest Bonded tape at the shoulder seams provide lightweight durability Back neck tape provides durability 85% POLYESTER, 15% COTTON Glossary:Dri-FIT Technology:A high-performance, microfiber, polyester fabric that moves sweat away from the body and to the fabric surface, where it evaporates. As a result, Dri-FIT keeps athletes dry and comfortable.