My PanamaBob Montecristi 200wpsi Havana, or at least I will be shortly. There's an afternoon race meeting so I'm off there in an hour. It's quite warm and humid here so I'm going with linen trousers, linen shirt and Panama, all non vintage but I like them. Wore my Justin 20X bangora this morning while out walking the dogs, I love this hat on warm days the open weave in the crown is great.
Just an observation. I've been to San Francisco two times the last two weeks and didn't see one straw. Not a lot of hat wearers, of course, but the one's I saw(in the city) where mostly stingy-brimmed felts.