I bought a pair at the local military exchange for $18 and a pair of the bikini briefs for $13. I was tired of my Hanes brand stretching after a few hours and essentially turning into regular boxers. The hanes were only a few months old and had done it from day one. I wore a pair for a full 24 hours and they never relaxed their fit or grew loose. They never rode up even while sleeping and on my daily bike ride they didn't bounce my balls all over the seat. Best underwear ever, but I'll be buying at the exchange where they are half the price for 2 pair than they are for 1 pair anywhere else.

They are only getting 4 stars because of the high price on Amazon.

I have come back to edit my review after a year of use. I have pretty much abandoned wearing these for any extent of time more than four hours. They are great if going out and it's too warm for my UA skivvies, but will stretch after four or so hours, the warmer it is the faster they stretch out. I'm going to stick with US's new mesh boxer briefs from now on. They breath like these, but don't stretch.