This is not your typical baseball hat. The Blended Operator's Hat was designed to give you every possible option for comfort. The custom materials are lightweight for comfort and breathability. For increased breathability, 2 custom mesh side panels were added to increase air flow. The typical top button has been replaced with a patch of female loop. One large 2" x 3" female loop patch on the back of the hat, the front patch was removed to allow an area for embroidery. Adjustable hook and loop closure. One size fits most.