It's Horween. It's stamped the same way regular scotchgrain calf is. Ron has commented he could probably source more if he wanted to, although how that would hold up with the 'shell shortage' I don't know.
Anyone have any recommendations for a collar to try with a bit higher band? Am using a fairly standard BD collar atm, and would like to keep it that way, but wondering if anyone has a collar they have on file at Luxire.