Personalized Blast Off For 1st Grade Long Sleeve T-Shirt. Get ready for grade school Long Sleeve T-Shirt - Pink with a rocket ship, planet and stars says BLASTING OFF FOR 1ST GRADE. Back to school gifts for 1st graders and 1st grade teachers. 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