According to the description, the inner bootie has a 4 way stretch.  I felt NO stretch in these whatsoever.  I have avg calves and these were just way too tight, and that was on a naked leg.  No way I could have worn these with pants.  A very petite, thin friend of mine who ordered the same boot at the same time said the exact same thing.  Too bad because they are very cute and were just what I was looking for in terms of looks, warmth (I think, never got a chance to try but they seem warm) and quality.  Just not sized correctly in the calf area.  Even for the AMAZING deal we got on these over Black Fri weekend, these had to go back.