I'm 5-10 175lbs. I got an XL. Tried it on and the chamois was riding up like an inverted pre made taco shell. The fabric is comfortable and the cut is simple and not very form fitting. It seemed to be in need of more panels to fit without bunching up. I washed it dried it and took it for a ride. Nothing changed. I spent the entire decent feeling violated. No other bib I own has felt like this. I had ordered two and the other one felt the same though I never washed or rode in it. I'll stick with Sugoi.