The Kenai was designed with all day comfort in mind and carries the largest .50 caliber revolvers and semi-autos in extreme comfort. The harness utilizes wide flat webbing and buckles located forward or your torso so there is no interference with pack straps. It also has heavy duty double layer elastic sewn in key locations, so it expands and contracts as you breathe. Because it runs underneath your back county setup if you drop your pack or other gear, your sidearm always stays with you. | GunfightersINC Kenai MAS for M&P Chest Holster -Right in Grey