Mens Womens Summer Sports Hats Classic Style for Baseball Hiking Fishing Runner Caps MATERIAL-100% soft and breathable Nylon, super lightweight. Adjustable: hat circumference 55-60cm.(21.62-23.58inch) Fabric: has 50 UPF to inhibit harmful UV rays and HELP protect your skin PEAK: The peak is stiffened by paperboard or stiff plastic. Keep a dry head. Perfect fit for Fishing,Beach,Hiking,Runing,Golf,Baseball,Tennis Outdoor Activities