I don't mean giving older British gentlemen a pension. I own a pair of dark blue Husqvarna safety chaps that are more than 20 years old. I've never had a chainsaw accident and the chaps aren't ripped, cut or torn. I've kept them clean. I don't know how effective the fiber material in them was at the time they were made, but I guess it was state of the art for that time. My observations of the market seem to show great technological strides in the protective material used in new safety chaps. Does the safety material in chaps wear out over time and lose its protective abilities? Should I retire my chaps and buy a new pair? Thanks.