Personalized Cute Pre-K Preschool Butterfly Long Sleeve T-Shirt. Pre-K butterfly comes on Pre-Kindergarten Long Sleeve T-Shirt - White teacher gift. Perfect for end of school gift giving or back to school. graphic c. Ne' Metzger. 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