You can try retailers who carry plus size clothes for larger women, instead of mainstream boutiques.
I wear a men's size 10, so a ladies size 12 fits. Plus size retailers usually carry women's shoes/boots up to at least size 14 (men's 12).
I thought that was just a joke from "King of the Hill". I wish I had thought of that two months ago.
Sent from my other Etch-A-Sketch