Are there any differences between the standard M Frame and Industrial M Frame frames? I want a set of sunglasses with polarized lenses, but the M2's styling just doesn't do it for me. I guess you could say I'm picky. A friend of mine has a set of the XL's. They fit alright, but the frames just feel a bit bulky to me. I also really like the cleaner/simpler lines of the M Frames frames, and since the only ones like that are the Industrial ones, I was thinking of using an Industrial frame with a set of M Frame polarized lenses. I've seen some regular M Frames on Ebay, but I don't want to end up with fakes or a pair with hidden damage. Thanks for any info or help.