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 $299.00
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SKU:

F1MJ

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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 521 reviews
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(484)
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F
Frederick D.
F1 Mainframe

Just purchased it and it is exactly what I expected. The quality and build of it and how light it is, now the bat wings and a vapor pack and it's ready, no more dragging!.I'm very satisfied with the purchase, I'm 6 2 225 and the tall is perfect fit for me. I definitely recommend this pack great job folks.

C
Clifford Y.
F1 Mainframe

I use it for ruck march training with a 50 pound bag of concrete. Works great. Looking forward to pushing the weight up to 75 pound soon. Bitchin' pack!

M
Michael M.
Great piece of kit!

The mainframe pack with the bat wings is PERFECT - can’t wait to try it out with some actual game meat; but the weight that I have carried is easy to balance - the construction is super sturdy and the adjustment in the straps is ideal for my body type. I did order the tall version due to my long torso (22 1/2”), as measured according to the instructions in the sizing video, and the tall fits perfectly.

J
Josiah M.
A must for every hunter

The F1 Mainframe in Dry Earth from @Eberlestock. It’s not only comfortable, but you are ready to pack out meat once you take that shot. I used it to pack out my mule deer this last season and am hoping to use it for an elk next season!

I did add the long padded hip belt and it was easy to change out from the standard one that came with the F1.

I love the system that Eberlestock has created with the mainframe and plan on adding some pouches and batwings.

A
Adam C.
F1 Mainframe

I’m not a review guy and haven’t put this pack to a true multi day hunt test yet, but from what little I have messed with it I can tell it will be an upgrade from my last pack. From top to bottom it feels like a good quality product and I am really looking forward to seeing what it can do in the field. I ordered 2 batwings and the dry bag, and this will be more than enough space to carry all of my gear.

J
JJ
Great pack!

Great pack. Very versatile. Lots of options to suit my needs for each hunt. Like that I can use the batwings for a day hike or the big bag for a week long hunt or both.

w
william b.
Another great pack

Now have 4 Eberlestock packs. Just great packs. Really like the versatility of this frame and batwing combo

D
Derek T.
F1 is amazing!

Purchased this with the two bay wings and the multipack. All set up it’s perfect for carrying necessary gear and I can unzip the bay wings in the center to load meat. Love the set up and quality of the stitching is excellent. Only thing I wish is the bay wings to have a way to hang my water bag but really slick set up!!!

D
Dan H.
F1 is a great daypack with the batwings

My lower back is not in the greatest shape, but after the first hike I felt little to no pain. The pack fit me perfectly, and is destined to be the best pack I've used!

R
Roger B.
Mainframe

The mainframe is another excellent product from Eberlestock. Having the ability to attach different bags makes this the most versatile system on the market. It is a very high quality product.