The Nike Dri-FIT Racer Running T-Shirt is great for running in warm weather or for layering in the cold. This performance running t-shirt features a back mesh panel that offers both comfortability and breathability. The Dri-FITŪ fabric works to keep moisture off your skin, ensuring comfort, and the reflective cord management loop on the back neck provides a solution for a hassle-free run. 100% Dri-FITŪ polyester. Imported.