The Outdoor Research Women's Solar Roller Sun Hat is a brimmed hat for hiding your head from the sun. When you've set foot onto the trail, protect your head with UPF 50+ sun protection. The brim shields neck, ears, eyes as well as most of your face (depending on the angles). Inside the hat is a moisture-wicking headband to prevent sweat from dripping at your brow. Features of the Outdoor Research Women's Solar Roller Sun Hat Lightweight sun protection Solar Shield construction UPF 50 Foam-stiffened brim floats Transaction headband Draw cord adjustment Removable chin cord Brim: 2 3/4in. / 7cm