Patent attributes
A load carrying device with shoulder straps and a waist belt fitted to an outer hull rigid-composite exoskeleton that contains within it, a similar inner rigid-composite hull or hull(s) that are extendable from the outer hull. When the inner hull is retracted inside the outer hull the backpack has a load capacity volume, such that the backpack can be used in an un-extended form as a backpack for carrying materials, such as camping supplies, equipment or mission specific components. Alternatively, when the inner hull is empty, and the inner hull/exoskeleton is extended out from within the outer hull/exoskeleton and mechanically coupled together with the outer hull, the extended backpack can be used as a habitable rigid secure sleeping space, thus providing sheltered protection against predatory animals, environment, reptiles and other environmental hazards within a hard exoskeleton.