I use a Kramer pocket holster with mine, works great. It's stiff enough to protect the safety. The down side is I think it's a little bulky, but OK in suit pants. I don't know who made my fannny pack, but it also hasn't let the safety slip in the 5 or 6 years I've owned it. I suppose it depends on the particular pistol, but I've got 3 of them and all have safety's you have to want to switch off. In any case, I think any pocket holster design that protects the safety from rubbing against the pocket would be fine. I hope your friend is looking at the pocketlite model, if he's really going to carry in a pocket. Makes all the difference.