This The Mentalist screencap contains
fedora, felt hat, homburg, stetson, trilby, boater, leghorn, panama, panama hat, sailor, skimmer, straw hat, and snap brim hat.
There might also be
business suit, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, beaver, pith hat, pith helmet, sun helmet, topee, and topi.
Jane discovers an important clue to Red John's methods as the team encounters four of the suspects, and the CBI investigates the case of a software engineer killed by a drone strike