Thick calves buy with caution
They are beautiful, perfect, and sturdy as heck, and the buckles do allow the upper part of the boot to expand a bit, but there's limits.
I have extremely muscular calves, so there's no give. The metal zipper was VERY hard to zip, even off, so much so that I had to wax it a little, then it moved much better.
I've taken a hair dryer to heat and stretch the calf area a bit, and they fit much more comfortably, so just know they may take a little work to get to fit right.
I'd do it all again. They are amazing.
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Big