Personalized Chemical Engineer Snowman Long Sleeve T-Shirt. A hard hat topped snowman, holding a beaker is a humorous design for college students, chemists and engineers at birthdays and the winter holidays. 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