I have a small Uncle Mike's fanny pack holster for my 642 but I've only used it for running. I like it because it doesn't scream "tactical" or "gun inside". I wear it in front. It's got a zippered compartment with a neoprene holster for the gun and a pull cord. It has a semi-rigid backing for support. I grab the pull cord with my left hand to yank open the compartment and draw the gun with my right hand.