13th Birthday Gift 2006 T-shirt B-day 13 Year Old Age Yr 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 thirteenth Bday Gift Idea boy girl Lightweight, Classic fit, Double-needle sleeve and bottom hem