I'm 5'10" and about 220 lbs. (give or take
). When I carry my G19 in a Comp-Tac "C-Tac" or my G30 in a Comp-Tac Infidel holster (both IWB, with loops), there is no printing. I've also carried a G36 in a Glock Phantom Modular Holster. I wear a Kydex reinforced contour belt beneath a one-size-too-big untucked shirt, as I live in South Florida. I've found all of these arrangements comfortable, secure and effective, particularly the G19 and G36 rigs. That said, I would also point out that I prefer kydex holsters over leather, so YMMV.