The ankle is quite slender looking but came in at 10" -- not nearly as wide as average, but not the smallest we've seen on this blog. The top opening measured 14.75" and would have suited my legs better at an inch or so smaller, though -- you can judge for yourself, through the photos -- there really wasn't an odd-looking "flare" effect from the midcalf up.
I'm finding that, in some cases, an unexpected side effect of slimmer calf boots is that the snug leg can make an average (like mine) to larger size foot look rather clunky. Not the case with this boot, which IMO gives the foot quite a pretty appearance. I think the "daintier" than typical (for a riding boot) heel on this boot may contribute to that, but it's also just the overall shape of the foot. Nicely done.
Calf slimness: ****/5
Find it at:
These sold out at Nordstrom,but as of March 2015 ebay has a few of these on offer, unused, starting at $140!