This is a nice boot.  I wear an 8M and that is what I ordered in brown.  This runs about 1/2 size larger, for me.  I thought about returning the boot for a 7 1/2, however decided to keep it and wear thicker socks or tights and use foot pads in the heel.  I did however order a 7 1/2 in black.  A previous review talked about the slick bottom of the shoe.  If I buy shoes with a slick sole I scuff the bottom with some sand paper, that seems to do the trick.  If I can I get the heel replaced with a rubber one I do, if not, I scuff that with the sand paper.