I'm one of those people who have freakishly sensitive skin, so just about everything gives me a rash. Throw in sweaty undies, and I'm in prickly heat hell. Anyhoo, yesterday I went to the LBS and got a pair of PI shorts, super tight (ugh) second-skin-like, went home and washed them then rode for a bit, and I think they're better. No bunching, no rubbing spots, no pain on the bum. I think they're ok. Next payday I think I'm goign to get another couple of pairs.