Fanny/waist packs have been a concealment option for a long time. Whether or not they work depends on how commonly they are worn in your area. I live in the tropics where every other tourist carries some sort of waist or fannypack. I also use one when I am not carrying IWB and it fits in fine with the local habits. I have traveled back to the States and noted many areas where very few locals carry one and thus it is much more conspicuous. Generally a nylon, non-black model blends in best in my area. Check out www.theconcealmentshop.com
. Click on the pistol pack icon to see their products from Anderson Enterprises (AE). Good luck.
best wishes- oldandslow