Hello! I like to backpack a lot and am getting into some adventure / expedition racing now that my college days are coming to a close and I see myself having a bunch of extra energy now that I am not running 80mpw. I am looking for a pair of running shoes that are waterproof. I am not talking about those "trail-runners" that are actually hiking boots, I am just looking for a pair of running shoes that has a waterproof (like gore-tex) upper. Nothing too fancy or heavy. What do you guys think?