Personalized 1st Birthday First Birthday Owl T-Shirt. Celebrate your little one's first birthday in style with our adorable Owl design apparel and gifts. Perfect for a baby girl turning one year old, our collection features cute cartoon illustrations of owls in pink, polka dots, and stars. Whether you're hosting a first birthday party or looking for a special gift, our products are sure to make the celebration extra special. 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.