I would have sworn I answered this already.
I think that the leather is ONLY the loop portion attached to a conventional two piece Kydex sheath. In the very first post he said: leather belt loop/firesteel backing.
That is the case. It's a pancake style kydex sheath that I ordered without any sort of mounting option, and 1066vik made a leather backing loop (I got the idea from BHK's Pathfinder sheath). It's a nice combination of modern and traditional, and the leather belt loop stays stiffer than a nylon belt loop usually would, making it easier to draw the knife out.
