Head circumference:60cm/23.62''Anti : It effectively absorbs , making its threat minimal to nonexistent and the scalp from other UltravioletsReversible Design means both the outer side and reversed side are wearable, the style never make it out of dateSize:One Size Fit Most.Wide brim protects eyes from the sunEasy to stuff in a backpack, purse or jacket pocket,Perfect for travel, hiking, fishing, golfing, and other outdoor activitiesA fisherman hat can be used as two hats, one side is a colored hat, the other side is a solid color hat, giving you two different styles.Package include:1xSun hat