Preshrunk heavyweight 6.1 oz 100% cotton adult tee. Shoulder-to-shoulder tape and seamless collarette. Double needle neck, sleeve, and bottom hem. This is a team color tee with a front and back print. With a unique design for each driver. (Heather gray is 90% cotton/ 10% polyester). Machine wash cold with like colors, tumble dry medium, do not iron decoration.