Personalized Puppy 2nd Birthday Long Sleeve T-Shirt. I'm two cute puppy. Celebrate your toddler's second birthday with this adorable little doggie. Happy 2nd b-day 2-year-old. 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