Official Teenager T Shirt - Funny 13th Birthday Girls Boys Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Fun tshirt for the new kid enter their teenage years. Mens, Womens and kids childrens sizes. 13 Years Old! Lightweight, Classic fit, Double-needle sleeve and bottom hem