Originally Posted by mcarthur
salt or road salt is very hazardous to shell
Salt is "hazardous" to any organic material - period.
But, shell resists salt far better than calf (or other hides that I've seen used to make shoes - not sure about exotics). Does that mean that you shouldn't try to avoid salt - No. Does that mean you don't need to wipe down a shoe after it's been exposed to salt - No.
I've lived in the North (NYC, then Boston and for the last 25 years in Chicago) and I've worn shell cordovan starting with the pair I got from Brooks Brothers when I was in HS (and my wife and kids will tell you that was a long time ago). Shell is better than calf.