The F1 Mainframe will haul any man-portable load with the same alacrity and a lot more comfort (and it’s quieter) than a giant freighter frame. However, unlike any other pack system, from this load-bearing workhorse, you can build a true ultra-light pack simply by adding one of our bags, such as the F2 Transformer, F65 Little Big Top, or A6SB Batwing Pouch.
 
The Mainframe can function as a freight pack or a daypack and can transform to a meat hauler within seconds. With our solid NT7 or 1000-denier nylon fabric, depending on your color choice, coupled with our ultra-light Intex II aluminum frame, the Mainframe shaves off pounds while maintaining superior strength and comfort.
 
MAINFRAME PACK FEATURES:

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

 
“External frame packs have been around for decades, but the Mainframe by Eberlestock is a reinvention of the classic design that has proved it is worth its weight in gold for me on several hunts this year. The ergonomic shape and extremely comfy hip belt and shoulder straps make the pack feel as if it is not there when you are traveling light to go pack out heavy loads. For heavy loads of bone-in and boned-out meat, I used the J-Type zip-on dry bag on the frame. The J-Type bag, like many other bags in the Eberlestock line, zips onto the Mainframe with two long vertical zippers.

The combined weight of this system was less than five pounds, but I feel it would easily handle loads in excess of 100 pounds (if you’re able to do so). I packed out one of my bull elk solo with this pack and assisted a friend packing out a big, mature mule deer that we skinned for a life-size cape. In addition to the J-Type bag, I used the Spike Camp Duffel and the F2 Transformer. In each case, I simply chose the best companion for the Mainframe pack for the particular application I needed. This is truly the first modular system I’ve found that allows for quick and easy transformations from one pack style to the next.” — Jerrod Lile, Hunt Advisor

MSRP: $189
 
For more information, go to www.eberlestock.com