One size fits most. Adjustable by velcro close on the back. Bling initials "RTB" for Real Tough Babe (because you cant say B itch on PM) These are new without tag. These are leftover closeout items from bike rally sales. I also have shirts, bandanas, purses, bags, belt buckles, etc all with the RTB brand and bling on them so please see my other listings for other biker babe items. You will receive the exact item pictured as the bling will be different on each hat so pick accordingly. Inventory #H005