Jockey Boy's T-Shirts Boys Cotton Performance T-Shirts - 3 Pack 60% cotton/ 40% polyester. Machine wash and dry. Imported. Style 765078 our cotton performance t-shirt is the perfect choice for any active boy he will enjoy the comfort of cotton transformed for performance cotton blend fabric wicks moisture away from skin and dries quickly to help keep him cool and comfortable fabric will move with and hug his body for a streamlined fit