The Old Fashioned holster is a single layer leather holster, made with 6/7oz thick leather. When you build your holster and you select the Reinforced option, we add an extra layer of 5/6oz leather. The Extra Magazine option is securely added to the holster. It is offset allowing the holster to take the natural curve of your body for a comfortable all day carry experience. The attached Mag Pouch also helps keep the pistol grip closer to your body for added concealment. The Tuck-able option carries just like the Old Fashioned holster, but allows you to slide a shirt between the metal clip and the holster.*Only recommended if you already tuck in your shirt on a regular basis.