Pro-Pak shoulder holsters provide a horizontal carry for a fast draw and lightweight comfort. The harness adjusts vertically on all four straps, and also adjusts horizontally between yokes. This model is compatible with 3.25-3.75" barrel medium/large auto.For everyday wear, Uncle Mike's Pro-Pak holsters are the ultimate. They're ergonomically designed, simple, lightweight and super tough. Pro-Pak holsters lie flat against your body, making them an excellent choice for use under jackets. They're constructed of an extra-thin laminate with a nylon outer shell. The smooth nylon lining protects your gun's finish and aids in drawing and reholstering. Developed for professional detectives, Pro-Pak holsters are now widely used by people outside of law enforcement because they fit the bill for durability and comfort. Features: Horizontal carry for a fast draw and lightweight comfort Offside tie-down has single mag case for autos or single speedloader case for revolvers