I bought these 501's excited that I had found some in my size.  I am a larger person, but the jeans were loose fitting on me which was fine as I usually order a size or two up to allow for shrinkage.  The first washing they went from Black to a streaked washed denim look, I was ok with that, but should have suspected something wasn't quite right.  After only 3 washes and on the 4th wearing the denim let go in the groin when I was sitting down.  Something that hasn't happened in other pants I've owned util I've worn them for 4-5 years of hard use.  I was not pleased at all and won't be buying the black 501's again anytime soon.  I have other regular Levi's that seem to hold up just fine, but reading some of the reviews apparently I'm not the only guy who felt a breeze where they weren't expecting it, in a very short time after wearing these jeans...