A while back, I posted a picture of myself wearing my straw farming hat and asking Jock if it looked all right. He said it looked fine. I also had a picture of my canvas, wide-brimmed Indiana Joans looking hat. He said that was fine, too. He also said the Panache pith helmit was fine.

MacMillan of Rathdown has also said he wears a Panama hat with or without the kilt.

That pretty much covers all the broad-brim and sun hats, even the ones not directly approved, as far as I am concerned.