I like vests, but the problem is if you wear one anyone who's been around much knows you're carrying a gun (especially if you're a middle-aged man, since we have most of the carry permits). Some people call them shoot-me-first vests. In spite of that I have a vest with an attached holster inside; I don't use it very often though because my pistol, a subcompact Glock, weighs that side down pretty bad and isn't very comfortable. So if I wear a vest I prefer belt carry with the vest hiding the gun, though as I said, how well it hides it is questionable. I never tried a leather vest. Mine was heavy, substantial material, but maybe a heavy leather vest would support the pistol better. Just my thoughts on the matter. A vest might work really well for someone else though, and I wish the business you refer to all the success in the world.