Packing for over 40 years all over north America I am a little worn out at 65 years old. 15% bone on bone in my right hip. The new Duplex belt allows me to carry the load without pain because of its wide wrap around design. The belt buckle is so easy to adjust while climbing up or easing down hills.. I'm impressed and recommend the belt and pack to anyone.. And I don't usually write reviews. My only criticism with the frame is that the load levelers are not easy to adjust while hauling . This is not the belt but the frame . Otherwise I absolutely would recommend the system to anyone young or old... Thanks Kifaru !