Personalized 1st birthday monkey Youth 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! Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.