These boots are very well made and warm.  They run true to size length-wise and are somewhat narrow.  I am an 8 and ordered an 8 1/2 to have room for thick socks.  It probably wasn't necessary to size up, but ah well, they're not worth sending back.  The calf is large and accommodating.  The biggest disappointment is the lack of arch support.  They are very uncomfortable on the bottom of the feet after just an hour or two of wear.  I would give them 5 stars if they had better support.