Summer 100% Cotton Plain Blank 8 Panel Newsboy Gatsby Apple Cabbie Cap Hat 100% Cotton Size: One size w/ elastic back for teens and ladies, S/M Head measurement: 55 cm, 21-5/8", Size 6-7/8 to 57 cm, 22-3/8", Size 7-1/8 Brim: 2-1/4" Height: 5-1/2"