Personalized Blast Off 3rd Birthday Long Sleeve T-Shirt. BLAST OFF IT'S MY 3rd BIRTHDAY Long Sleeve T-Shirt - Charcoal with cute astronaut and stars. 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