The
Eberlestock J107M backpack is a variant of our Dragonfly hunting pack. This newest member of the Just One family is at the pinnacle of backpack design. With the patented Cam Expansion and built-in Backscabbard™ that made the Just One famous, the Dragonfly raises the bar, featuring a high tech suspension system, a huge range of adjustability, and more patented and proprietary features than any pack made. A full slate of premium features includes a full framesheet, which augments the internal aluminum stays to give a very stable load bearing platform, and a fully adjustable shoulder harness and beefy #10 zippers. If you need a pack that is scalable for multiple missions, you should consider a Dragonfly.
Great pack! 
