The Oakland Raiders Nike Pro Combat Hypercool Short Sleeve Speed Tee is a base layer tee engineered with Dri-FIT fabric to help wick away sweat. Each tee features contrast-color piping and panels on the sides and back, while bonded mesh pods on the back and side for maximum ventilation. High-performance, microfiber, polyester fabric that wicks sweat away from the body and move it to the fabric surface, where it evaporates. The Raiders team name is screen printed on the chest for pride. 84% polyester, 16% spandex.