The MARK IV is designed to be as durable as possible. It is 100% American Made. It is constructed of heavy duty 1000 Denier Cordura and comes with a Lifetime Guarantee. The Mark IV has padded rib protection, rifle recoil pad, flashlight holster and hands free shoulder cradles, spine protecting pads, and of course, countless pockets. It is made by hand in Northern California to Kitanica's exacting specs using only the highest quality fabrics and fixtures.