The Mountain Hauler 4000 is built on a tubular, aircraft-grade aluminum frame that supersedes industry benchmarks of comfort when under load. The triple-density foam in the hip belt and shoulder straps will not fold or crush under weight, providing supreme comfort right where you need it. With a load rating of up to 150 pounds, full game bags and a set of antlers are right at home in the Mountain Hauler 4000. Thoughtfully designed internal and external storage hold all your possibles. Holsters, bear spray rigs and other aftermarket accessories can easily be added to the waist belt. Sizing: Medium: 28"-36" Waist // Large: 34"-40" Waist