Les P'tits Explorateurs "Atom" t-shirt 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 Les P'tits Explorateurs (The Little Explorers): unisex short sleeve T-shirt Adult and kid Sizes Available Get your super cute Atom short sleeve t-shirt today! 100% cotton American Apparel fitted t-shirt! Super cool and empowering design! This premium t-shirt is made of lightweight fine jersey fabric Fit: Slim (consider ordering a larger size for a looser fit)