THESE BOOTS RUN SMALL--ORDER A SIZE UP....I usually wear an 8-8.5, so after reading the reviews to size up, I bought a size 9....they *just* fit.  I love these boots.  They are my new favorite thing to wear and want to wear them everywhere.  They are so soft and warm.  I also like that I can wear them up, folded down, or scrunched.  They are also a ton cheaper than the Ugg sweater boots.