F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
Tall F1 Mainframe
Regular F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe
F1 Mainframe

F1 Mainframe

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The Most Versatile Pack Ever

Regular price Sale price $279.00
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SKU:

F1ME

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One of the primary base platforms for the EMOD™ system with a constantly growing number of accessories. Build it up to be a multi-day expedition pack, or go in light so you can come out heavy.

Tested to hold more than 700 lbs., this ultra-rugged frame utilizes YKK zippers to allow the attachment of a variety of packs and accessories to fit any backcountry hunt. The F1 Mainframe™ is fully adjustable and completely user configurable with endless combinations.

ULTRALIGHT SETUPS

  • The Vapor 2500, 5000, or 7500c.i. for any length adventure with ultra-light considerations. 
  • Use 2 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 Super 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 new Vapor 5000 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

  • For a 5-10 hunt, use the new Vapor 7500. Pack all of your gear into the backcountry and when you reach camp and drop your gear, the Vapor series with collapse nicely against your frame to allow you to day hunt out of your camp.

EMOD Compatible

Load Bearing

Meat Hauler

Intex II Frame

THE EBERLESTOCK GUARANTEE
We are confident that we fulfill every order with the utmost quality, accuracy and timely delivery. In the event that we do not meet any of your expectations, we are happy to return or exchange items that comply with our simple guidelines
FIT & ADJUST YOUR PACK

Videos

The Vapor Series

Available in three size options — the Vapor Series redefines ultralight hunting.

Batwing Pouch

The perfect option to build a minimlaist day pack.

Pairing the Mainframe with Packs

See some of the most popular setup options with the Mainframe.

REGULAR PRODUCT SPECS

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

TALL PRODUCT SPECS

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

PRODUCT FEATURES

  • Built-in Grapple compression straps
  • Zippered attachment points
  • MOLLE webbing matrix on main panel
  • Adjustable ladder harness system

F1T (TALL VERSION) PRODUCT FEATURES

  • Tall version is 3.5" taller than the regular size
  • Designed for those with torso lengths measuring 19 inches or longer
  • Tall Mainframe is compatible with the same accessories and packs as regular Mainframe

Customer Reviews

Based on 486 reviews
93%
(450)
7%
(32)
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(4)
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F
Flobot
Gets it done

Just got back from a cow hunt. The pack was great and super light! Unfortunately wasn't able to pack out any meat as expected. Will review again when I carry an elk out with it!

R
Ryan F.
F1 Mainframe Initial review

I just received the F1, so I have not had it out in the mountain yet, but the initial take is great. Seems really well built and I love the modularity of it. I got a couple batwings so I can use it as a day pack as I am new to western hunting and will start off with day hunts and the modularity of it allows be to grow to be able hold a weekend trip gear and then eventually a week long hunt in the wilderness of I do one. That plan is the reason I went with this pack.

J
Jason M.
Love the F1 and entire Eberlestock line

I was already a fan of Eberlestock products with using the X2 for 3 years as a saddle pack for public land whitetail hunting. Great design, quality materials, and excellent craftsmanship.
The F1 mainframe and its versatility were highlighted to me in an Idaho elk hunt when I borrowed one from a friend.
I loved using the frame as a back support while glassing and got to see the fantastic modularity of going from a 7500 vapor set up to a meat hauler with just the bat wings in less than a minute after we dumped gear and started meat hauling. It helped me pack out my first elk comfortably with no issues outside of my own stamina. Less than a year later, I evaluated multiple options as I considered buying my own pack for a 2023 backpack elk hunt and landed right back on the F1 for its design flexibility, ease of use, and competitive pricing. I paired the F1 Mainframe with the 7500 Vapor, Batwings, hydration bag and the 4000 dry bag to cover my backpacking scenarios.
Appreciated the great customer service as well addressing some concerns when I thought I had ordered the wrong size recon bino harness. I got everything I needed in quick fashion! Eberlestock has earned a long term customer.

G
Gregory B.W.
Excellent product

I ordered the F1 main frame with 2 bat wings .
Right now I am using this as my saddle pack carrying sticks and platform . Really comfortable and easy adjusting. Thanks for the pack eberlestock .

P
Paul Z.
F1 Mainframe

Could not be more excited to pack this rig through the mountains next year! Feels comfortable, and appears to be well built!

J
Jim B.
Fits my back

I am 5’10”, 175# and this frame with 2 Batwings fits me perfect. The anxiety of getting that first load of meat out without a hauler pack that also works as a day pack is gone. It even converts to a strap on seat.

C
Chris B.
Pretty Good

7 day hunt this past week. Loved the A_Frame.

T
Terry T.
Durable Versatility

Very durable, wears well, and is exceptionally versatile.

J
Justin M.
A great pack

Everything about this pack was great. It makes the load you carry feel dramatically lighter. I swear it defies physics.

W
Warren C.O.

F1 Mainframe