I have suffered for years from chafing that has really constrained the activities I can comfortably do with family and friends -- primarily affecting long walks.  It's really just an anatomical thing, I'm not grossly overweight.  I can't explain why it took me so long to do some internet searching to see if others suffered in the same way.  Long story short, I finally did, and I decided to try a pair of these.  The day after I wore that first pair I ordered six more.  It's really an elegant solution.  Is it possible to end up with a different sort of discomfort at the end of a long day?  Yes, but with two important differences:  1) with a very minor adjustment (quick visit to a mens room), full comfort can be restored, and 2) there's no *lasting* discomfort, as with chafing.  Before these shorts, if I took a long walk, my resulting discomfort would last a couple of days.  I never found a powder, a lotion or anything that could actually help once the chafing had occurred.  I can't imagine returning to any other underwear now that I've found these.  Seriously.