I'm usually in between a medium and a large when it comes to boxer briefs sizing.  I decided to try a large, and these Hugo Boss boxers fit perfectly.  Also, they look great and compliment my physique very well (according to my gf).  I highly, highly recommend them.  When I ordered these there was a deal where if you ordered 4 sets or more (12 total boxers) then you got a huge discount.  If that deal were to happen again, I'd gladly purchase another batch!  I threw away my old Calvin Klein and Hilfiger boxers once I felt how comfortable these were. I've found that they offer just what I need whether it's playing tennis, lounging around, hiking, etc.