Personalized Giraffe 1st birthday T-Shirt. Make your baby girl's or baby boy's 1st birthday unforgettable with our adorable birthday outfits. Whether you're planning a small family gathering or a big birthday bash, our outfits are the perfect choice for the occasion. Let your little one steal the spotlight and create beautiful memories that you'll cherish for years to come with our 1st birthday outfits. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.