Personalized Coolest Environmental Engineer Long Sleeve T-Shirt. The world's coolest environmental engineer with a snowman wearing a hardhat and holding the earth is a humorous gift design for engineers and college students at birthdays and 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