"NOTE: Please, specify the size at checkout. If the size will be not specified, the hat 12-24 months will be sent. 0-6 months fits heads up to 15\" 6-12 months 16\"-18\" 12-24 months 18\"-19.5\" 2T-4T 19.5\"-20.5\" 5T-preteen 20.5\"-21.5\" This hat is a perfect accessory to complete an outfit and makes a great photo props! Will make a great gift for the First Christmas or Baby Shower. I would be happy to make a custom order for you! Note: Colors may vary slightly from picture due to computer mon