I normally wear a size 8.5.  My feet are narrow and my calves are about average(not too thin or too muscular).  The 8.5M fit perfect for me.  The boots are cushioned and the rubber soles also add to the comfort.  These boots seem like they would do well in wet weather as the bottoms have a nice tread.

The ankle area has a lot of room butI think it would be nicer if it was a bit more narrow.

These are great mid-calf boots that lean towards the casual side and are very comfortable.

I bought them while they were on sale at Amazon for $110.  Great price and the delivery was fast since I have prime.