I had surgery for 2 groin hernias not too long ago.  I'm a pro skier in the winter and a working cowboy in the summer.  So this summer's ranch/cowboy work was straining some of the aspects of the surgery.  My surgeon buddy recommended I wear a jock strap to help protect my "parts" a little better as a solution.  A jock strap wasn't comfortable for the all-day wear and work (chainsaw/logging, fencing, etc.) typical of my day.  So I ordered a pair of these to test them.  They worked pretty well and have some very comfortable fabric on them.  For work on the ground, they are quite good at keeping your parts out of the way and protected reasonably well.  While on my horse--walking, trotting and higher gaits--they were not quite as protective as the Safe-T-Gard product with a similar design.  However, I did order more of these for the comfort of the fabric.  But I will use the Safe-T-Gard product for sure when I'm on my horse.  My regular pant size is 30 or 31, so I ordered these in small.  That size worked just fine for me.  So I would say they are true to size.