Carry-On-Bones is a carrying system designed to put the weight of a backpack on the bones instead of the muscles, in order to reduce fatigue. All in all, this system includes the shoulder straps, the hip belt and the lumbar support. Every part of it is shaped and designed with great care in order to do just what the name implies: put all carried weight on the bones.
With the shoulder straps, the weight is directed to the collarbone. With the hip belt, it is directed to the hip bones, and the lumbar support is of course directed to the lumbar bone. To ensure maximum comfort, we place most of the foam where most of the pressure is.
The Carry-On-Bones system is extremely helpful for trekkers needing to support heavy loads.