I ordered a pair of hiking boots years ago and the company asked me to enclose an outline of my foot with the style of socks I would wear with them. They were able to give me the right pair based on the drawing.

You may want to contact Sorel and ask them if you can do the same...contact Customer Service maybe?

-----------

I had to laugh at the first link.

It mentions Mexican shoe sizes.

Our women do not wear shoes, We keep out gals barefoot and pregnant.