These are sooooo good guys!!! SO stretchy! Your normal Judy Blue size is going to fit great and give you a relaxed slim straight kind of fit. If you like a locked and loaded more skinny fit, size down 2 from your department store size! So for me, I am a true 18, the 16 fits me great with a relaxed fit, however I love more of a skinny fit so the 14 does just that and the stretch is good that the waist is not snug at all! If I wanted more of a relaxed fit as shown I would stay with a 16.