I ended up getting two pairs of these shorts -- one medium and one small (I'm 5'8", 125 lbs.). The small ended up fitting better all around, but both are fine (I had already worn the medium, so I'll just keep it). What I really like about these shorts is the waist band. It's wider, so it doesn't dig into your middle. The fabric is also very pliable, so it really moves with you. I also haven't experienced any chafing from the chamois. I joked with my friends that I almost forgot I had shorts on at all -- I had to look down a couple of times to make sure -- b/c these shorts are so comfortable!