Personalized Coolest Chemistry Teacher Long Sleeve T-Shirt. The world's coolest chemistry teacher text with a snowman holding a bubbling beaker will tickle the funny bone of your favorite educator at birthdays, holidays and graduation. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL