Boys Space Shuttle T-Shirt. Space Shuttle Discovery 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 Space Shuttle Print Tee. Perfect to wear at home or out on the town. We love space! A fantastic Space themed T-Shirt which comes in 4 colors. Lightweight, Classic fit, Double-needle sleeve and bottom hem