The Shield is so easy to conceal with an OWB, I saw no reason to wear it uncomfortably in an IWB. Wright Leather Works makes quality leather holsters and I own two. One for my Shield and another for my 640-1. I do not see any need to have a drawer full of holsters if you do it right the first time. Remember a quality gun belt is just as important as the holster.
Concealed Carry Leather Holsters - Wright Leather Works LLC


S&W Shield 003cf3 by Jerry Jaynes, on Flickr