ComputerGear Funny Science T Shirt Random Act Geek Nerd STEM Unisex Adult Tee 100% cotton; Machine wash/dry Small fits chest/bust 34-36 in. chest, Medium fits 38-40, Large fits 42-44, X-Large fits 46-48, plus size 2XL fits 50-52, 3XL fits 54-56, 4XL fits 58-60 Perform random acts of science when wearing this science t-shirt Science tshirt makes a great STEM gift for any budding scientist Clever science tee shirts are unisex and fit both men and women Novelty graphic shirts with funny sayings are a ComputerGear&reg copyrighted/trademarked design; DON'T BUY COUNTERFEIT ITEMS FROM OTHER SELLERS