Personalized 1st birthday monkey T-Shirt. Whether you're hosting a birthday party or just want to dress up your baby girl or boy for their special day, our Monkey design outfit is the perfect choice. Get ready to celebrate this milestone with a cute and charming outfit that will make your little one look even more adorable! 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.