just do an outside hip holster but make sure that you have a good belt. Im in the army so i have a really nice one size fits all belt. You can pull it tighter to make sure the holster stays in place. Im 6'1 150 so im pretty slim but im still able to carry a full sized 1911. Dont use lether belts because eventually the leather will break or split and your belt holes will be a quarter inch long.