F1 Mainframe Overview
The most versatile pack system in the backcountry.
The Vapor Series
Available in three size options — the Vapor Series redefines ultralight hunting.
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
- 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
I love the versatility of the pack frame. The ability to customize the frame for what kind of hunts you are doing from a day hike to a week out in the back country. The pack frame is very comfortable and it is easily adjusted to properly fit.
I haven’t had a chance to try it out yet. I just got it last week but from what I can tell it fits great and seems like it will handle a lot of weight. judging from other products of bought from Eberlestock stock, it will do just fine.
Fit and finish is what you would expect from Eberlestock. Second bag from Eberlestock and I can’t wait to get it out this Elk season
I got Batwings and a mainframe and am very impressed. Solid construction, light, and comfortable. I recommend and will be buying a 50 liter pack next!
I had never used any of the Eberlestock packs but after receiving the f1 mainframe, batwings and vapor 2500 I loaded it up…I was blown away by how comfortable it was and can’t wait to use it on my upcoming elk hunt!
...which is excellent. Combined it with a vapor 5000 and a dry bag rifle scabbard. Love the modular options. Will be using it for backpacking this summer and hunting this fall. Will likely add a multi-lid to finish my setup.
Would love to see something along the lines of a zip on tomohawk style pack become available for this frame.
This is my 4th eberlestock pack. I have yet to see another company do such a good job at creating products that meets the needs of hunters/shooters/backcountry explorers.
Haven’t used it for elk hunting yet but have taken it out rucking in preparation for some backcountry turkey hunts coming up and wow it’s awesome! Super durable and fits great!
Pack frame appears to be of good quality… only issue being if I waited 30 days I could have saved almost $200 on the frame and vapor pack. Seems like it is just a crazy mark up and I would recommend everyone wait until march if you were to ever order from here so you don’t get ripped off.
Very lightweight and easily customizable.
Recently purchased F1 frame + Batwings + bolt action scabbard and love how well they work. The fit is perfect and I have been winter trekking with the pack loaded down many times. Love the modularity and the fact the frame allows the pack to stand vertical when I take it off. Thanks Eberlestock !