I have a t-shirt holster its like a cross between an under armor shirt and a shoulder holster. Downside it is not super easy to get to with a regular shirt over it. A big plus it holds my kel-tec .380 and my full size xd .45. Also it is great under my riding jacket. What Chevy said about holsters in a vehicle. This includes motorcycles ie. saddle bags, but I normally carry in my t-shirt holster, my hip holster or in the pocket inside my riding jacket.