You can find a number of hand tooled leather belts on Etsy.
I had an (repro) old civil war belt and buckle. I wore out the belt after 40 years. Found a place to buy a replacement leather belt. Nice and sturdy. Real leather, not paper. Could hang a pair of dragoon pistols on it. Me, I'd be dragged down by the weight, but the belt would be fine!Look for gun belts - there are all kinds of quality leather belts out there.
GsT
I had one of those fake leather belts disintegrate so I decided to get a real leather one, it’s a Hanks and my older brother has picked me up by it with no damage to the belt.Google "Hanks belts " . Seems like they're the real thing .