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. 

.: 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