Originally Posted by Man Of Lint
I won't wear shell or suede in slush or heatwave weather.
Really? I drag out my dirty bucks in a lot of crappy weather, seeing as they're waterproof. I've put the poor things through the wringer quite a bit, but they're still perfectly fine- the whole suede falling apart if it touches water is a myth. And shell is probably the best leather you can choose for slush- pretty much impregnable.
To me, suede is year round. Shell I wear less during the summer because it keeps my feet warmer. Also, the only shell shoes I have are black, and I wear black shoes a lot less during the summer.