The center top of a hat, the button can be decorated in a number of ways, including matching cloth or even metal.
The "quadrants" of a hat. Customization could be applied to each different panel of a hat.
Small holes in a circular shape around the button at the top of the hat. Typically "six sewn" or "metal".
A unique layer of fabric "sandwiched" between the top and bottom part of the front of the cap bill.
As a convenient way to adjust the size of headwear, a closure comes in multiple styles such as a velcro strap, buckle or snap.
The bill of a hat looks similar to the bill of a duck. It extends forward and blocks the sun, a primary purpose of headwear