Aren't they generally leather? Anyway, edge dressing on the sides, and some people get a bit of leather lotion on the bottoms from time to time. They're cheap to replace, too.
I don't wear nice shoes when the pavement is wet and the sidewalks are salty. For the uppers, I brush them off when I come in, using a damp paper towel to remove salt, and I polish them when they need it.
I think that's just what they are called. But as they are usually a different colour, and at times composition, you would probably have to use something other than general, coloured polish.
I imagine neutral polish could work if it is leather, saving you having to track down specific products?
Edited by RPM1 - 1/14/14 at 4:12pm