Personalized Super Math Teacher Long Sleeve T-Shirt. Long Sleeve T-Shirt - Charcoal for teachers with shield, Pi symbol and banner says SUPER AMAZING MATH TEACHER. Perfect teacher appreciation gift for your favorite superhero mathematics teacher. 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