It doesn't take a detective to figure out this is one cool hat. Turning the Hawaii Five-0 wave and establishing shot of Diamond Head into an original painting is a classy way to celebrate the of this classic show. This hat features a printed patch and is made with 100% cotton twill fabric. It is washed so it's soft and has a pre-formed plastic bill to look broken-in from the first day you put it on. The adjustable back clasp allows for a great fit. One size fits most.