In fact, I went to boxers as regularly practicing hike, I had no less regularly heating problems at the seam of my pants at the groin. With the Boxer, this problem has disappeared. Having tried other brands, I notice that the Sun has an unbeatable value for money: the finishes are very beautiful, the fabric is very elastic, it does not bother at all, and therefore comfortable to wear. Perhaps a little small size because I'm doing 42 pants size and having taken the M, I think the L would have been more comfortable.