Personalized Number One Teacher Long Sleeve T-Shirt. Cute Number One Teacher apple logo school Long Sleeve T-Shirt - Black gift for the best teacher you know. Add their name or class year below the design when you order. 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