US Patent 10085511 Hat ventilated through brim

A ventilated hat is provided that includes a crown and a brim, the brim having air passages that extends from the front and/or sides of the brim, through the brim to the crown. Air is enters the air passages at the front or sides of the brim when the wearer moves or when any slight breeze blows into the brim, cooling the wearer's head. The hat can be constructed as a single unit or as a frame upon which replaceable hat covers are mounted.