Eberlestock F1 Mainframe Pack – The F1 Mainframe represents what is arguably the greatest innovation in modern pack making, the holy grail of a great modular pack system. But unlike any other pack system, with this load bearing workhorse as a base, you can build a true ultra-light pack simply by adding one of our J2DB Dry Bags. 

The F1 is one of the primary base-platforms for the EMOD — the  Eberlestock Modular System, and it works with an ever-growing number of complimentary accessories. Add components of your choice, and the Mainframe can function as a freight pack, day pack, or all-around utility pack.  For hunting, it transforms to a meat hauler within seconds

• Intex ll aluminum frame.
• Zippered attachment points compatible with our duffels, drybags, and more.
• Full MOLLE webbing matrix covers main panel to attach scabbards, pouches, etc.
• Three built in horizontal compression straps for securing your gear.
• Adjustable ladder harness system. Makes customizing the fit quick and easy
• Lifetime manufacturers warranty.