This New Era, Seattle Mariners, authentic MLB baseball hat is a limited print edition that has the extra sparkles and shine that is not normal on most of the MLB hats. It says it’s a juniors size but my roommate who is an adult female, was able to wear the hat but maybe she just has a small headband most adult I don’t know. It definitely does not fit my head but I wear like a 7 1/2 6 foot man so use that for a size thinking that it would fit most juniors or smaller adults. 😀