A 100% polyester front and 100% nylon mesh weave back make these hats super durable through regular wear and tear. They come in one size with an adjustable plastic snap closure: 22.8" (58cm). The cap's front has six rows of visor stitching. Material: 100% polyester foam front with 100% nylon mesh weave back One size fits most (22.8"/58cm) Four color combinations to pick from Adjustable plastic snap closure Six row stitching on visor Creases on the hat will straighten out naturally once unpackaged and worn