M. Sparks & Del Fatti usually.
There are many other incredibly high quality holsters by some really top makers that I would daily carry in with 100% confidence but, the ones I already have just seem to last forever.
This is my all time favorite OWB holster. (below) It's an extreme forward rake custom by Matt Del Fatti.
Doggoneit...I had to swipe a PIC of my own holster out of the Del Fatti Photo Gallery.
It looks so new in this photo. <~~~