I was watching a show last night and the police had these little thin vests on and I'm assuming they were bullet proof vests. For such a size, I would think they would weigh no more than a pound or two. I'm sure these are expensive, but in a shtf world it would be worth it. Anyone have any experience with bullet proof vests and know what something like that would cost? I see them all the time on ebay, but wanted to do my research first.