Well I guess I don't have the guts for a tricorne, however ever since my teens I have felt naked without a titfer of some kind, even if it was the old Fred Dibnah cloth cap which did me for many years.
I have worn a very wide variety of hats and for preference I prefer a wide brim and the widest I found was an Akubra Territory, but alas it was not hardy enough for me, developed holes (as these things do)
That is by way of saying that the best and most durable and waterproof hat I have ever come across has to be leather.
You know deserts, heat and all, tis all cultural. If an Akubra is sufficient in the Gibson desert why would I want to ponce about with a Smemagh in Arabia? I have read my Lawrence and there was a Bedou who wore a greatcoat so there you go.
We wear leather boots and shoes, we wax and polish em, so there you go, can you really better a leather bonnet?