I'm guessing you are referring to carrying IWB. It probably depends a little on what you are carrying and its holster. But for me, carrying a P229 .40 or P227 IWB, I believe an extra inch (maybe 1.5") was added to my waist size.
I carry both IWB and OWB depending upon the situation. Thus, if the waist is let out too much, the slacks will bunch up at the waist and just look weird.....
I carry both IWB and OWB depending upon the situation. Thus, if the waist is let out too much, the slacks will bunch up at the waist and just look weird.....