My daughter wears a uniform to school, and these Dickies are just perfect.  This pair, with no front pockets, runs just a bit smaller than the Dickies with both the front and back pockets.  We bought these in a size 3 and the four pocket pants in a size 1, and they fit exactly the same.  I would recommend choosing just one size larger than you normally wear.  These are great pants, they wash and wear very well!