Personalized Teacher Thank You Long Sleeve T-Shirt. Personalized Teacher thank you gift Long Sleeve T-Shirt - White also makes a great back to school item. Our unique apple and chalkboard teaching art is colorful and cute. 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