I have had a hard time finding consistency in the fit of the Dockers D2s.  I have purchased four pairs and each of the four have a slightly to vastly different fit.  Instead of playing the guessing game with the D2s, I purchased 3 pairs of D3s.  The fit on the D3 is slightly baggy, but consistent.  So I know if I buy my size the fit will be the same for all pairs.  The Iron Free is about 80% true.  I still have to Iron my pants before I wear them, but being ex-military I might have higher standards regarding wrinkles than most.