Mainframe
Regular F1 Mainframe
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Mainframe

Mainframe

The Most Versatile Pack Ever

Regular price$299.00
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  • 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 681 reviews
93%
(633)
5%
(37)
1%
(10)
0%
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(1)
J
Joshua A. (Arizona)
An Absolute Game Changer

The design of this frame and the different configurations intrigued me. I decided to give it a shot and that was the best decision I've ever made. The lumbar support on the harness is insane and makes weight easy to carry. Great support going through your back as well and good ventilation in the back. I really like the webbing on the hip belt as well, it makes it easy to attach a small accessory pouch, medic pouch for quick access or even mount a handgun. I picked up the Vapor 5000 with it and a Batwing shortly after. I love how within 2 minutes I can completely refigure my pack for a back country hunt or just a day trip to do some scouting. Due to the versatility and great design, I think this is a frame every hunter / backpacker should be running.

J
John J. (Wyoming)
A+ for quality and fit.

Ordered mine with the batwings. Love the way it fits my already owned day bag with the addition of the batwing storage. Pretty excited to put it to work this fall.

D
Daniel D. (Virginia)
Mainframe is comfortable and robust

I have worn it with a pack a few times and hiked up and down a hill in training for a longer trek. It is very comfortable, adjustable, and distributes weight nicely around my waste, putting little pressure on my shoulders. So far so good! I’m happy I bought it with the EMOD 5000.

J
Jordan F. (California)
MAINFRAME & VAPOR 5000

I purchased the mainframe and vapor 5000 with the intention of it replacing my current camping backpack. I am very happy with my product. Eberlestock delivered the products earlier than expected and in good condition. I am super happy with the products and the materials they are made from. I only wish the products shipped with instructions on how the EMOD system pieces together, or I wish there were instructional videos on the website. Otherwise great products, I am happy with my purchase.

S
Stephen S. (Washington)
Solid pack frame

Just by looking at it in person you can tell this pack frame is built solid and capable of hauling heavy loads. Looking forward to putting it to use this fall.

D
Daniel M. (California)

very light weight

W
William Z. (Illinois)
Mainframe

Great item for packing in and out of a swamp