These pullover hooded sweatshirts are made of 8.3-ounce, 65/35 ring spun cotton/polyester, the royal frost is made of 60/40 ring spun cotton/polyester. Youth sizes come in two different styles: royal frost is made of 60/40 ring spun cotton/polyester and the white and royal blue is made of 8-ounce, 50/50 cotton/poly. (DT6100/DT6100Y/18500B)