I just wore my YSL out in the rain! It is pouring here in NY and I didn't have time to switch bags and quite frankly it pisses me off (pardon the pun) to even have to consider switching bags due to rain. All is well! Bags should endure even more than shoes. They are meant to be worn and used to carry our necessities. Being pretty is icing on the cake!
LOL -- I don't wear my leather shoes in the pouring rain, either! I think I must be OCD.
I have GoreTex-treated Timberlands that are my rain shoes.