I have a Galco small of the back holster that is pretty comfy, easy to get at the gun and is all high quality leather.
Mernickle makes some real nice leather also, if you want one custom or personalized in some way.
http://www.mernickleholsters.com/ps/pssw.htmlI bet if you did a search on SOB holsters you'd find a ton of them.
I have a few Galco holsters, and I found out when buying those new they need to be broke in. Like if you try to stuff your gun a brand new Galco, you might think your gun doesn't fit, but reading the directions Galco sends, it's like breaking in a new ball glove. You massage the holster all over, then after a while your gun will go in all the way, then you leave it in there for awhile, then pull it out and massage it again...ect...after a time your gun will fit in the leather holster just like a baseball in a glove.
I like SOB holsters at times, but find they bug me if I have to do much sitting in hard chairs...other than that, I think they come in pretty handy for goffing around for a day with a vest, or a shirt untucked. Doesn't take much to cover them up because the gun is riding in more of a horizontal position.
But lately, the last few months, I've been using IWB holsters with a vest, or loose sweatshirt or whatever. I'm really getting used to the IWB thing.
You'll probably find a whole bunch of places out there that make SOB holsters if you do a search on them. They only SOB I have is Galco, and I've been happy with the quality of it, it seems to be well made with a tension adjust in it to grab your gun tighter if you like.
Happy shopping!