I read reviews on many sites before ordering, I ordered the brown and the "black" which is not black which I knew from reading reviews and is actually a really cool lighter charcoal grey color.  I usually wear a 7, I ordered a 6.5 because everyone said they run big, this is true, the 6.5 in both brown ands black fit perfectly.  They are looser in the claves then most boots but with jeans tucked in they fit snug and without jeans they aren't floppy or anything, just not skin tight, they look really cute with a skirt.  I have average sized calves but often find zip-up boots a little snug, these are super comfy.  I'm glad I ordered both colors, they are awesome and I've gotten tons of compliments already, I would totally recommend them.