I am selling these boots because the size was a little too small for me. There are no issues with the zipper or other functions. The leather has softened, and I think they would be easy to wear if the size was right. These are custom-made, so there is no size notation, but they are approximately size 37 or 37.5 (23.5-24cm). The calf circumference is around 38cm. They are beautiful boots in a rare brown color. Please consider them.