Mainframe
Regular F1 Mainframe
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Mainframe

The Most Versatile Pack Ever

Regular price$299.00
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Color
Size
  • In stock, ready to ship
  • Inventory on the way

The primary base platform 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 1300 lbs., this ultra-rugged frame utilizes top of the line zippers to allow the attachment of a variety of packs and accessories to fit any backcountry hunt. The Mainframe™ is fully adjustable and completely user configurable with endless combinations. 

ULTRALIGHT SETUPS

      • Use the Vapor 2500 or 5000 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.
      • The Bolt Action Scabbard and EMOD Lid are great options to carry your rifle and gear handsfree.

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.

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

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 671 reviews
93%
(624)
5%
(36)
1%
(10)
0%
(0)
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(1)
G
Gerald J. (Montana)
Made an excellent choice

I have not had the frame in the field yet, but was easy to fit. I have tested it under load and carries well. Can't wait to use it in the fall. I am very happy with my purchase.

S
S.B.

High quality pack! Got the batwings + small pouch. Order showed up right when the pre workout kicked in so here we go. I also have the X2 love’em both. Itching to get out west this September try and get on some bulls!

M
Michael T. (New Mexico)
Best pack out there!!!

I have used this pack for many heavy ruck journeys. Recently, I took this pack to the Bataan Death March carrying 40lbs+. Marched a total of 26.56 miles and had no issues with the pack. This pack did phenomenal, I added the batwings to my pack and they held up very well. Best pack money can buy. This company stands by their brand.

E
Eli L. (North Carolina)
As expected

Picked up an F1+bat wings+dry bag to use for the 2024 season. It’s performed exceptionally well on some training and scouting hikes loaded with a good amount of weight. Definitely go with the tall frame if you are >5’10” or so to get the some extra leverage on the lifters. Easy to fit and easy to swap between bags. I especially like the wide hip belt, helps distribute the load and gives a spot for a water bottle/accessory pouch set up.

K
Keith (Washington)
Nice Pack

I am 5’10 and purchased the tall mainframe to gain an increased angle in the load lifters. I was able to get a good fit by dropping the harness to the lowest setting and purchasing the padded hip belt. I like the modularity function of the pack. Purchased the Vapor 2500 for one to overnight outings. Plan to get the Vapor 5000 for extended hunts.

B
Benson

Good solid frame. It was definitely an improvement over the FIBLE frame I was issued, and I even managed to get the FIBLE mainpack sack to work with the frame, even if it wasn't designed to fit.

G
Gus R. (Washington)
Mainframe

Very pleased with this purchase. Not only was the shipping and delivery very quick but this new mainframe system is perfect for what I need. A robust and sturdy frame to haul the heaviest loads of meat and or gear without sacrificing a bulky frame system and comfort.