I was pleased to find that these boots are longer than most other so-called "knee length" boots I've tried and they also fit nicely round the ankles. My calves aren't exactly tiny, so I was worried they wouldn't zip up, but they do as there's an elastic panel at the top.
I love them and I was impressed with Shoe Envy's fast service too, especially since they offered these boots cheaper than anywhere else I'd looked. Perfect! :-D

These fly boots are stunning