They run very small. I usually buy a L, so I upped the size to XL. When I received my order and tried them on XL was still to small.I probley read the sizing chart wrong. I'm a 36" waist average size. I returned the XL and ordered a XXL and this size fits a lot better.I like the gel padding, and they fit snug. I figured for the price I couldn't beat it. So far the quality and performance is great!I'll buy another pair or two.