These are the cutest hat for this football season! They are a seersucker material with a french knot logo. Ships same day or next business day Girls have a bow on the back, the boys are plain. Both genders close by velcro in the back SIZING GUIDE: XS: 17 1/2" circumference SMALL: 18 1/2" circumference MEDIUM: 19 1/2" circumference LARGE: 20 1/2" circumference XL: 21 1/2" circumference