Periodic Nerdy Funny Science Geek Geekery T-Shirt 100% Comfortable Pre-Shrunk Cotton Professionally screen printed in the U.S.A using the highest quality textile inks. Our shirts are made to achieve maximum comfortability and feel. Guaranteed to love it! If youre not happy with the size we offer hassle free exchanges. Machine washable. Best recommended to wash inside out in cold water. Tumble dry low or hang dry if possible. Do not bleach This shirt is in mens sizing, check our other listings for womens and youth tees.