Personalized 5th Birthday Robot Long Sleeve T-Shirt. Happy 5th Birthday! Celebrate your child's fifth birthday with this cute robot. 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