I read that they run small and ordered a size 10 but they were to small!!! I  had no problem exchanging them and I'm now wearing a size 12.  That's 2 sizes up from my own size.  They fit fine, but now they are now a looser "skinny jean" around my legs.  They will be to baggy to wear them tucked into any of my boots.  Thank goodness I know how to alter clothing because I'm going to make the legs skinnier.
BUYER BEWARE:  Order 2 sizes up and expect a loose fitting "skinny leg".