42nd Birthday T-Shirt. "Super Since 1977" 42 Years Old Tee 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 42nd birthday party gift. Perfect T-Shirt to celebrate a hero's 42nd birthday party! A fantastic birthday themed T-Shirt which comes in 5 colors. Lightweight, Classic fit, Double-needle sleeve and bottom hem