Heavy weight load bearing system adjustable for most sizes.
Pre-curved 3-D "Tube Style" aircraft aluminum internal staves perfectly fit the back and transfers load weight from shoulders to hips.
Excellent shoulder harness system with D-Rings for drinking tube and flexible sternum strap to reduce shoulder fatigue and adjust to your breathing.
Airmesh-padded back.
Fully adjustable perfect with Airmesh padded hip/ waist belt for heavy loads, detachable.
Top lid with internal and external zip pouches has compressor straps and is adjustable in height (so you can store your insulation mattress or TOW's under it).
Zippered sleeping bag compartment access.
Two detachable side pouches which form a day/ patrol pack comes with it's own padded adjustable side pouch yoke.
Compression straps at top of main body.
Siede compression straps.
Webbing for modular systems.
Lots of attachment points, buckles and straps for weapons, ice axe, ski, ...