Planet Jupiter Europa Space Travel Shirt 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 Combines the love of Space, Sci-Fi and Travel all in one shirt. Vintage Science Fiction T-Shirt Lightweight, Classic fit, Double-needle sleeve and bottom hem