I've gotten to the point where I'm okay with bringing the 35cm Black Togo out in general, but if we're talking Flood City, I have a Marc Jacobs black patent tote and bowler I bring out for said occasion. The tote survived 3 days of downpour in NYC without any issue-it's definitely coated with something akin to Teflon!
I still take my bj hac with me. IF I get a little drizzle on it I rub it in!
I swear it looks better when a little wet, and somehow the stains comes out.
I do keep my raincoat in it with me just in case.
That is the perfect "amazonia" garden party weather, but I think they discontinued it.
I have used my togo kelly in downpours, and it was just fine, I made sure to bring a paper towel with me to wipe the bag down with as soon as I got indoors.