I have a pair of ultrasone open back headphones not sure of date == pretty old and they sound great, but they must have been made for a giant. Even at tightest setting they don't fit, and I wind up putting various sponges, tapes, whatever to get them to fit right. Mail order, heavy discount, maybe a bad design? Is there some better fix than this? I might just try to find some craftsperson to sew up something with foam or something, but I wonder if there is a better way?