I like to wear knee pads when working (hey, somehow I always end up crawling around under a stage on my knees!), but they're sorta unacceptable on a lot of corporate gigs. Or at least the military ones are. I've used wresting ones before, they work pretty well because the don't or barely show under pants but they don't last very long and are pretty uncomfortable. Anyone have ideas for knee pads that can be worn under pants and are comfortable/stay in place.