Personalized 3rd birthday Owl Long Sleeve T-Shirt. Make their 3rd birthday extra special with our unique and charming products that are designed to make memories that will last a lifetime. 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