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Questions & Answers
How do I know if I need a regular size frame or tall size frame? Expert Answer

Eberlestock states that if your torso is longer than 19 inches they recommend using the Tall Frame Eberlestock F1 Mainframe Backpack.

by Hunter, Gear Expert, August 16, 2022
Is this the regular or tall version? I dont see a option to choose Expert Answer

There is a box that you select, under the price, to choose regular or tall. You have to choose reg or tall, and then choose your color, before adding to cart.

by Tom B, Gear Expert, October 14, 2021
Customer Reviews
Helpful Positive Review 7 Day Hike/Camp/Hunt by parker, Verified Owner, March 7, 2017
Used this, joined with the Transformer pack and the Spike Camp Duffel, on a week-long camp/hike/hunt in the Appalachian range. Very comfortable, very solid, very durable. Lots of up and downs in the Blue Ridge and this pack setup enabled me to carry ...
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6/6 found this helpful
Helpful Positive Review Pack frame by Shaft, July 7, 2015
I love this pack frame, it is light weight and small in size but can carry a heavy load with no problem. I also added the spike duffel bag to the frame, it zips right on and adds to the versatility of the frame.
1/1 found this helpful
Helpful Positive Review Versatility by GIB, May 31, 2016
The F1 by far has become my top choice in all my packs. I have the F3 Fac Track which was my 1st pack, Vanquest Falconer 27 & Kelty Red Wing 50 and none of those compare to F1's versatility. Because it can carry all of those packs & then some. Obvio...
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1/1 found this helpful
Helpful Positive Review Light frame pack by jds, January 6, 2017
I like the FI. Good frame pack compared to others on the market. However, I have yet to find the perfect reasonably priced external frame pack. This one is close but does lack a few features that would move it closer to the perfect pack. Namely, ...
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2/2 found this helpful
Helpful Positive Review F1 External Frame Pack by jds, January 6, 2017
The F1 is a good frame pack. Well built. Needs a longer lashing strap on the bottom of the frame pack to lash a sleeping bag to the shelf. Slim and reasonably light weight. The Transformer pack that attaches to the F1 Frame is a bit heavy for its...
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2/2 found this helpful
Helpful Positive Review F1mainframe by Elkaholic, January 14, 2017
This is a very nice , quiet , comfortable pack frame ! I've got the transformer ordered also to team up with it and can't wait to use them both together ! The only thing I would add to this pack frame is the pouches on the belt, which you can order s...
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3/3 found this helpful
Read All 13 Reviews
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Product Info for Eberlestock Mainframe Pack

For the ultimate in ultra everything, the Eberlestock F1 Mainframe Hunting Backpack gives you comfort, capability, lightweightness and versatility. This backpack engineered by the specialists at Eberlestock features a modular system that works with over 15 Eberlestock add-on accessories to function as a freight pack or a day pack, and transform to a meat hauler within seconds. Coupled with the ultra-light Intex ll aluminum frame, the Eberlestock F1 Mainframe Backpack w/ Adjustable Harness System shaves off pounds while maintaining superior strength and comfort. With over 100 possible combinations, the Eberlestock F1 Mainframe Tactical Backpack is made to serve any situation and in any environment.image

Specifications for Eberlestock Mainframe Pack:

Manufacturer: Eberlestock
Gender: Unisex
Maximum Loading Weight: No Restrictions
Pack Application: Hunting
Pack Type: Large Volume Pack
Hydration Compatible: No
Fabric/Material: NT7
Age Group: Adults
Pack Loading: Front
Internal Dimensions: 35 x 12 x 10 in
Width: 11 in
Height: 22 in
Depth/Thickness: 1 in
Package Type: Box
Application: Hunting

Features of Eberlestock Mainframe Pack

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

Package Contents:

  • Eberlestock Mainframe Pack

Eberlestock Mainframe Pack Orderable Models

List of Orderable Models

Eberlestock Mainframe Pack, Military Green, Long, F1TMJ , MPN: F1TMJ , UPC: 812028018857 , Code: 8G-BP0-F1MB-F1TMJ
Eberlestock Mainframe Pack, Mountain, Long, F1THM , MPN: F1THM , UPC: 812028018819 , Code: 8G-BP0-F1MB-F1THM
Eberlestock Mainframe Pack, Military Green, F1MJ , MPN: F1MJ , UPC: 812028015146 , Code: 8G-BP0-F1MB-F1MJ
Eberlestock Mainframe Pack, Dry Earth, Long, F1TME , MPN: F1TME , UPC: 812028018840 , Code: 8G-BP0-F1MB-F1TME
Eberlestock Mainframe Pack, Mountain, F1HM , MPN: F1HM , UPC: 812028011216 , Code: 8G-BP0-F1MB-F1HM
Eberlestock Mainframe Pack, Dry Earth, F1ME , MPN: F1ME , UPC: 812028015139 , Code: 8G-BP0-F1MB-F1ME
Eberlestock Mainframe Pack, Skye, Long, F1THS , MPN: F1THS , UPC: 812028018826 , Code: 8G-BP0-F1MB-F1THS
Eberlestock Mainframe Pack, Mirage, Long, F1THR , MPN: F1THR , UPC: 810039451410 , Code: 8G-BP0-F1MB-F1THR
Eberlestock Mainframe Pack, Skye, F1HS , MPN: F1HS , UPC: 812028016280 , Code: 8G-BP0-F1MB-F1HS
Eberlestock Mainframe Pack, Mirage, F1HR , MPN: F1HR , UPC: 812028019052 , Code: 8G-BP0-F1MB-F1HR

Eberlestock Mainframe Pack Unavailable & Discontinued Models

List of Unorderable Models

Eberlestock Mainframe Pack, Mossy Oak Brush F1HB , MPN: F1HB , UPC: 812028016006 , Code: 8G-BP0-F1MB-F1HB
Eberlestock Mainframe Pack, UNICAM Dry Aramid F1UD , MPN: F1UD , UPC: 812028015870 , Code: 8G-BP0-F1MB-F1UD
Eberlestock F1 Mainframe Backpack,Hide-Open Timber Veil F1HT , MPN: F1HT , UPC: 812028015115 , Code: 8G-BP0-F1MB-F1HT
Eberlestock F1 Mainframe Backpack,Hide Open Western Slope F1HP , MPN: F1HP , UPC: 812028015122 , Code: 8G-BP0-F1MB-F1HP
Eberlestock Mainframe Pack, Doppelganger, F1DG , MPN: F1DG , UPC: 812028011223 , Code: 8G-BP0-F1MB-F1DG
Eberlestock Mainframe Pack, Grey, Regular, F1GY , MPN: F1GY , UPC: 810039451946 , Code: 8G-BP0-F1MB-F1GY
Eberlestock F1 Mainframe Backpack, Hide-Open Western Slope, Tall, F1T-HP , MPN: F1T-HP , UPC: 812028018833 , Code: 8G-BP0-F1MB-F1T-HP
Eberlestock Mainframe Pack, Coyote Brown, Regular, F1MC , MPN: F1MC , UPC: 812028019175 , Code: 8G-BP0-F1MB-F1MC
Eberlestock Mainframe Pack, Doppelganger, F100DG , MPN: F100DG , Code: 8G-BP0-F1MB-F100DG
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