I have trouble fitting into them. I think it's because there are two dimensions....waist and length. At 5'9" and 185 lbs. with a 35" waist and 43" chest I find that if I buy based on waist size the length is too long and if I buy by length the waist is a tad small. Then again I'm comfortable with shorts. I do have two pair of PI Tri suits and they fit me very well. Unfortunately the chamois gets me about 30-40 mi. and then feels a little too "minimal" for me.