F1 Mainframe
$249.00$249.00

    PRODUCT FEATURES

    • 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.

    REGULAR PRODUCT INFO

    • Weight: 4 lbs 5 oz
    • Dimensions: 26"h x 11"w

    TALL PRODUCT INFO

    • Weight: 4 lbs 8 oz
    • Dimensions: 29.5" x 11"w

      F1T (TALL) SPECS

      • Tall version is 3.5" taller than the regular size
      • Designed for those with extra-long torsos or prefer higher load-lifter straps
      • Tall Mainframe is compatible with the same accessories and packs as regular Mainframe

      OUR MOST POPULAR CONFIGURATION

      F1 MAINFRAME + BATWINGS

      THE HOLY GRAIL OF

      MODULAR PACK SYSTEMS

      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

      THE HOLY GRAIL OF

      MODULAR PACK SYSTEMS

      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

      1 PACK

      ENDLESS 

      CONFIGURATIONS

      F1 Mainframe
      $249.00$249.00

        PRODUCT FEATURES

        • 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.

        REGULAR PRODUCT INFO

        • Weight: 4 lbs 5 oz
        • Dimensions: 26"h x 11"w

        TALL PRODUCT INFO

        • Weight: 4 lbs 8 oz
        • Dimensions: 29.5" x 11"w

          F1T (TALL) SPECS

          • Tall version is 3.5" taller than the regular size
          • Designed for those with extra-long torsos or prefer higher load-lifter straps
          • Tall Mainframe is compatible with the same accessories and packs as regular Mainframe

          THE HOLY GRAIL OF

          MODULAR PACK SYSTEMS

          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

          1 PACK

          ENDLESS 

          CONFIGURATIONS

          MOST POPULAR ADD ONS

          Vapor 2500
          $149.00$149.00
          Vapor 5000
          $199.00$199.00
          Vapor 7500
          $249.00$249.00
          Vapor 2500
          $149.00$149.00
          Vapor 5000
          $199.00$199.00
          Vapor 7500
          $249.00$249.00
          F5 Switchblade
          $199.00$199.00
          A6SB Batwing Pouch
          $44.95$44.95
          A2CP Nosegunner
          $129.00$129.00

          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.

          F1 Mainframe
          $249.00$249.00

          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

          MOST POPULAR ADD ONS

          Vapor 2500
          $149.00$149.00
          Vapor 5000
          $199.00$199.00
          Vapor 7500
          $249.00$249.00
          F5 Switchblade
          $199.00$199.00
          A6SB Batwing Pouch
          $44.95$44.95
          A2CP Nosegunner
          $129.00$129.00

          ULTRALIGHT SETUPS

          The F2 Transformer is ideal for day or overnight hunt trips. Stay organized but still have a frame to haul meat.


          Use two Batwings when you plan to go in light and come out heavy. Stay quick, light and mobile with the Batwings. They are intuitive and make packing out meat simple.

          MID-RANGE SETUPS

          Pair with the Spike Duffel or Dry Bag with Batwings for a 2-4 day hunt. Pack all of your gear into the backcountry and when you reach camp and drop your gear, unzip the duffel or dry bag and hunt in your ultralight Batwing setup.


          If you like the organization and function of a backpack, the Little Big Top is the ideal choice for a 2-5 day trip. Allows for top-loading or front-loading access and use the Mainframe when it is time for some heavy lifting.

          EXPEDITIONARY SETUPS

          The Little Big Top is ideal for those who want to get out and stay out for extended 5-10 backcountry stays.


          For a 5-10 hunt, use the Dry Bag and Little Big Top . Pack all of your gear into the backcountry and when you reach camp and drop your gear, unzip the dry back and hunt in your compact Little Big Top setup.

          F1 Mainframe
          $249.00$249.00
          • 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.

          • Weight: 4 lbs 5 oz

          • Dimensions: 26"h x 11"w


          • Weight: 4 lbs 8 oz

          • Dimensions: 29.5" x 11"w


          • Tall version is 3.5" taller than the regular size

          • Designed for those with extra-long torsos or prefer higher load-lifter straps

          • Tall Mainframe is compatible with the same accessories and packs as regular Mainframe

          Customer Reviews

          Based on 219 reviews
          92%
          (201)
          7%
          (16)
          1%
          (2)
          0%
          (0)
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          r
          r.r.
          Main frame review

          The pack is great, the only problem i have is a few things I wanted for it like the batwings were on backorder last I checked which makes the pack not as useful as I was expecting.

          S
          S.G.
          F1 Mainframe

          Love it!! Its light, strong but very sturdy..

          A
          A.B.
          Great mainframe, very sturdy yet lightweight.

          Have two of these, a tall for myself, and a standard height for my wife. We have the batwings on one, and the F5 switchblade on the other. Both have a Zip-On Dry Bag should we need the extra space. These are both very versatile setups, all made possible from the mainframe.

          S
          S.E.
          Customer service

          Ordered F1 pack and pack arrived with a faulty zipper. I contacted Eberlestock and they shipped a new pack same day. Thank You!

          C
          C.
          Comfortable lightweight system

          I paired this with a Vapor bag and absolutely love it! Such a great pair together, and the F1 by itself is exactly what it needs to be. If you’re on the fence... buy it.

          ULTRALIGHT SETUPS

          The F2 Transformer is ideal for day or overnight hunt trips. Stay organized but still have a frame to haul meat.


          Use two Batwings when you plan to go in light and come out heavy. Stay quick, light and mobile with the Batwings. They are intuitive and make packing out meat simple.

          MID-RANGE SETUPS

          Pair with the Spike Duffel or Dry Bag with Batwings for a 2-4 day hunt. Pack all of your gear into the backcountry and when you reach camp and drop your gear, unzip the duffel or dry bag and hunt in your ultralight Batwing setup.


          If you like the organization and function of a backpack, the Little Big Top is the ideal choice for a 2-5 day trip. Allows for top-loading or front-loading access and use the Mainframe when it is time for some heavy lifting.

          EXPEDITIONARY SETUPS

          The Little Big Top is ideal for those who want to get out and stay out for extended 5-10 backcountry stays.


          For a 5-10 hunt, use the Dry Bag and Little Big Top . Pack all of your gear into the backcountry and when you reach camp and drop your gear, unzip the dry back and hunt in your compact Little Big Top setup.

          F1 Mainframe
          $249.00$249.00