ComputerGear NASA T Shirt Polo Golf Space Science Geek Officially Licensed Navy and White are 100% cotton pique sport polo shirt, Heather Grey is 90% cotton/10% polyester; 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 Wear the right stuff with NASA Adult Polo Shirt; Features 3 button up collar and embroidered NASA Meatball Logo NASA engineering polo shirts make the perfect STEM gift for a NASA fan, or lover of all things space Clever space polo shirts are unisex and fit both men and women; Officially licensed Novelty polo golf shirts are a ComputerGear&reg copyrighted/trademarked design; DON'T BUY COUNTERFEIT ITEMS FROM OTHER SELLERS