ComputerGear Funny Math T Shirt Calculus Geek Nerd STEM Long Sleeve Tee 90% cotton / 10% polyester T-shirt; Machine wash/dry Small fits chest/bust 36 in. chest, Medium fits 40, Large fits 44, X-Large fits 48, plus size 2XL fits 52 Get armed with funny math t-shirt; Makes the perfect STEM gift for the math lover in your life Warn them wearing this witty long-sleeve shirt "armed" with two key methods of calculus, differentiation and integration printed on each of the sleeves Clever calculus equation 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