I ordered the black 8 petite, I am 5'3 & slender hips, skinny legs, arse, etc., These dressier Dickies are for skinny people with no hips, this is why they are perfect fitting. They are more sheer fabric than the work pant, therefore dressy for work & comfortable to run around catching a train to work, walking a mile, stretching out in the gym before I go to work & sit at a computer in many slouching positions & they still look perfect, no wrinkles.

Point being, is that they move with you, slightly stretchy, the don't ride down or need a belt , the petite are perfect length for short people, & you can still feel comfortable & look ok for work & after.

I wash them in cold water & hang dry, so they won't shrink or fade, they are 97% cotton, so if you do put yours in the dryer, you may want to get a size larger, so if they will shrink.
Also, yes, I agree that the twill fabric shows a ridiculous amt. of lint, get a lint tape brush. Dickies are awesome if you have a skinny frame/body. they are pricey, but worth it if you have to be dressier at work.