Funny Aerospace Engineering T-shirt It's Rocket Science Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 58% Cotton, 42% Polyester Imported Machine wash cold with like colors, dry low heat Featuring funny and humorous engineering quotes. Cool typography design in high resolution image to ensure high quality printing. This premium t-shirt is made of lightweight fine jersey fabric Fit: Slim (consider ordering a larger size for a looser fit)