For those of you who prefer to shop on Amazon, I have provided links for you too. Select color and thickness on Amazon. I used 12 iron for my projects. Here are the links on Amazon:
This is a link for Black, Brown, Red, Gray, Sand, or White colored moldable soling shoe making material.
What is 12 iron and what is the difference in the numbers of iron? Thank you! I have been working on making leather moccasins and leather mukluks for my young adult children and have been having a hard time finding a sole for them.
One iron is equal to 1/48 inch, so a sole 3 Irons thick would be 3/48″ or 1/16″, which would be .0625″. This unit is believed to have originated when a piece of iron of a known thickness was used as a guage for the thickness of leather, but this measurement also applies to modern day soling as well. 6 Irons thick would be around 1/8″ thick and 12 iron thick would be around 1/4″ thick. Hope that helps!