I Toad You So Shirt, Funny Animal Joke Pun Biology Gift 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 Makes a great kids birthday or Christmas gift Also great for biology teacher professor, outdoors or wildlife nerd Lightweight, Classic fit, Double-needle sleeve and bottom hem