These are adorable boots and fit true to size.  I wear a size 8 and I tried these boots on with a mid-weight Smart Wool sock and they fit perfectly.  Since I ordered these in August I cannot review how well they work in the snow or if they are waterproof.  Ordered early because if I had waited until winter to order, I would not have been able to find my size.  Gave them a rating of 4 stars only because I cannot review if they are waterproof or not.  They seem very comfortable and love the lining.  Should keep my feet very warm.