I've been enjoying making my own straps lately - slowly developing some of the techniques involved, but one aspect is eluding me. Some of the straps I've purchased (likely machine made) have a back lining of very thin material. This paper thin material does a good job of hiding seams, and has the added benefit of providing a spot for some contrast colour on the inside of the strap.
Anyone know what this material is called/how I should look for it? I believe that it is leather, just a very specific, purpose treated variety maybe?