Fits my foot perfectly although I have to admit, as a woman with slightly bigger thighs/calves than most, I did struggle a bit to get them on. After forcing that zipper up and some strutting around and stretching I can wear them much more comfortably! From barely being able to bend my leg into a squat it's safe to say that these are now some of my favourite pair of shoes.
If it's any help I would not recommend these shoes to girls who's thighs/calves are any bigger than mine. As a reference my calves are 14"/36cm and my thighs (where the boots end) are approx 19 1/2"/50cm
These boots also made me realise my right leg is much wider than my left! If you can't get it on one leg, keep trying! I can guarantee you should be able to get it on.