I'm not sure why anyone would want a OWB holster for the Shield, personally. If I OC, I'll choose a double stack gun with a higher capacity. I love the Shield, but I love it because it's thin and you can CC it very comfortably. For that purpose, a simple Tuck style single clip IWB holster is what I use (like a DeSantis SOF Tuck). You can also get a hybrid, like Alien Gear, Comp-tac, Galco, etc. I would try a single clip tuck holster first, simply because they are inexpensive and you can find them locally pretty easily. If you don't like it, you're not out much (you should be able to find one for under $25). I ended up getting an all black leather Safariland (not sure of the model number, but it's similar to the DeSantis SOF Tuck) at the NRA convention for $21. Works great for me and I didn't spend $50+ like I would have for most hybrids.