Personalized Clean Up Long Sleeve T-Shirt. Clean up the world. Start with your mouth! Stop verbal pollution with this humorous design. Fun gifts for birthdays, holidays and Earth Day. 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