Alessi was the orginal factory leather for Detonics, and will still make holsters frot them. There shoulder rig is one of the best on the market. They are my go to holster company amymore, the KISS principle is alive and well there. Kramer is my second choice, especialy for IWB holsters, he has Detonics molds. Sam Andrews also makes some very interesting designs, his shoulder rigs are very interesting ( I have one for my Colt 1911,I do not know if he does Detonics or not). I Hope this helps.
S/F
Paul