Our gun belts are made and have always been made of two layers of 6½ to 7 oz leather cut from the backbone of the hide. This equates to approximately 13/64” to 7/32” in overall thickness. Keep in mind that this is the belt thickness we fit our holsters to, and our holsters are intended to fit snug on the belt. Any manufacturers’ belt over 7/32" thick will be somewhat tighter in the loops of one of our holsters than on a belt of our own manufacture. Any measurement over 1/4" in overall thickness of leather and you may not be able to close the snaps over the belt!