A customer brought in his gun, fitted with a tactical light. He brought in his old holster as well, made by Don Hume.
It looks to be made from 3/4 oz leather glued together, then two pieces of that laminate are glued up to make the holster body, four pieces in total.
The thumb break strap has more flexibility than the ones I make. I currently use resolene as a finish.
I like the flexibility of the strap, as it helps to avoids wrinkle lines, but don't know how to achieve that.