Mathlete, Math Nerd, Number Cruncher Hooded Sweatshirt, NOFO Clothing Co. Sweatshirt and design are EXCLUSIVE property of NOFO CLOTHING CO Pre Shrunk 50% cotton, 50% polyester ; double-needle coverseaming on neck, armholes and waistband pouch pocket; double-ply hood with grommets and matching drawcord seamless body with set-in sleeves; virtually pill-free Width of Sweatshirt in inches S=20, M=22, L=24, XL=26, XXL=28