Personalized 1st Birthday Boys Teddy Bear Long Sleeve T-Shirt. 1st Birthday Baby Boy Long Sleeve T-Shirt - Pink gift has adorable little blue teddy bear design and This Boy Is One quote. 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