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Eberlestock -J79 The Skycrane II

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The J79 Skycrane II is a modular load bearing system consisting of three primary bags: the basic J79 pack, the pull-out G1 “Little Brother” pack, and a removable fanny/courier pack.  These components comprise the basic system, with a volume of 4475 cubic inches. 

Add our optional J2SD Spike Duffel to get 6275 cubic inches, or choose the J3SD Super Spike Duffel to reach its maximum capacity of 7375 cubic inches (duffels not included with basic pack system).

  The A4SS Tactical Weapon carrier, our other Side Scabbards, and a variety of components can be added to make a seamless pack system that can be selectively configured and optimized to a variety of missions.  The basic J79 pack has a fully adjustable, robust internal aluminum/plastic frame system which can be optimized for direct-to-back carry or over-armor carry. 

Unique proprietary features enable the weapons carriers to be used singly or in combination, and to be mounted to either the J79 or G1 packs.  Both the J79 and G1 are compatible with PRC-117 type radios and other modern battlefield communications gear.

We made the J79 visually similar to our G4 Operator and F4 Terminator backpacks.  This family of pack systems leads the way in modern military pack design, in which entire units can be fitted with packs suited to individual specialties.  Because the packs have similar visual characteristics, identification of snipers and other specialist personnel will be more difficult for the enemy.

The J79 is the second-generation Skycrane, developed from the J263 Skycrane I.  The J263 was extremely well liked by soldiers in the field, who found it to be the best platform available for carrying modern heavy-class sniper rifles.

The original J263 model was a pretty big pack.  As the idea evolved into the J79 Skycrane II, one of the changes that we decided upon was to make the new pack narrower in the frame.  This way, when the J79 is in the compact mode, it's a nicely proportioned rucksack, in what we consider the ideal dimensions for a multi-day military pack.  It's scaled the same as the G4 Operator and the F4 Terminator, and has the unique ability to either grow or reduce its size depending on the mission.


11 lb. 12 oz.
Compressed Dimensions:
24-L 13-W 8-D
System Type:
Backpack Size Range:
  • Greater than 3500ci
Backpack Type:
  • Internal Frame
Cubic Inches / Liters:
Dimensions :
Hydration Compatible:
  • Multiple Pockets
Weapon Compatibility :
  • Long Gun (Requires Scabbard)

Brand Name

Brand Name:
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I've only put it on around the house ( so I haven't stress tested it) but it seems to be of quality construction.
I really like the modularity of the pack. As some have noted the side pockets are smaller ( narrower) than they appear in the picture, which maybe good or bad depending on what you want. I'm giving it 4 stars, not so much due to detect but simply because there is room for improvement and things that would work better for me.
It is the first effective modular-system-backpack I personally know - just IMHO, I am not an expert. Can go up to 10'000 c.i. and more.

An interesting opportunity not mentioned in the reviews (as far as I am aware) to increase the volume is: to unzip only one side of the integrated G1 (aka LittleBrother aka 3-day pack) and to zip the SuperSpike or the smaller duffel in that 'split' - so, that one side of the duffel is zipped with the J79 main bag and another - to the G1.
Super goods and real fast shipping. Quality is great, but it is also normal for this company. Best Brand.
I purchased this pack and consider it one of the best buys I've had online. As you probably know this is really three separate, high-quality packs that enable you to mix and match to accommodate whatever mission you happen to be on. For example, the way I generally have my system set up I keep all of my main camping gear in the heart of the Skycrane.

I can do this because it has a good amount of storage in and of itself, but I have also added an assortment of molle pouches to the back panel allowing me to carry my first aid kit, a trenching shovel, as well as a huge three-pocket pouch for a bunch of miscellaneous items. I also purchased the eberlestock Super Spike camp duffel which is the main bucket I use in this pack to carry my sleep system and some clothing.

In the fanny pack I keep everything I need for day hikes: fire kit, flashlight, mini first aid, folding knife, emergency sewing kit, as well as a couple of sandwiches and snacks for the trail AND I throw my 2-liter hydration pack in there and I'm good to go. I generally use the Little Brother as my go-to backpack for camping and everyday use. 90% of the time I have it loaded up as my range bag with some sandbags, ammo, and protective gear. When I go camping I generally use it for clothes.

Overall I really can't say enough about this product. The quality is absolutely top-notch and you can't go wrong with this kit. This system is a bit pricey but you get what you pay for!
Whether you're a backpacker, hunter, or in the military, this pack is ultimate. I have done more research than I feel comfortable admitting trying to find the perfect pack! This pack has the versatility to be anything you need it to be. Whether you are looking for storage, or the ability to hike in deep and haul out heavy, this pack will do the job.

The multipack system at it's core is like the ultimate egg burrito; you can seriously put whatever you want in it, wrap it up, and you can be confident that it will end up where you end up. Not to mention, there are specific attachments through Eberlestock such as duffels, scabbards, extra hydration, etc. Non-Eberlestock add-ons can easily attach to it with the MOLLE webbing. It is fully adjustable, even down to the hip belt.

If you're really going heavy, you can even replace it with a thicker hip belt. The aluminum stays are fully adjustable to perfectly contour to your back for ultimate comfort. I'm a 5'11 185lb man and the Skycrane II fits me perfectly. When it's all adjusted and tightened, it fits my 115lb wife as well. We have even ditched her Osprey pack for another Eberlestock. Also, the military green color is amazing in any natural environment. Hunting this year, I set my pack down and walked back to it and dang near tripped on it looking for it... The material is also waterproof.
love this pack
Eberlestock dos not mess around. Know what you're needs are and pick the pack that fits- done
A few things to remember. Craftsmanship and quality material come at a price. In this case, weight. This is a heavy pack keep that in mind but once you lay your hands on it you will know that it is also bomb proof. I selected this pack because of all the compartments. I never like the trash bag with straps approach. This pack has so many pockets and PALS webbing that you can actually organize your kit which is always important. The better organized your kit, the easier and more efficient you can get to the items you need, which in the end can save your life or the life of others.

Lets begin:

This is a very versatile pack that has many configurations, basically three packs in one.

Once you set up the harness and mold the aluminum frame supports, you will not even know you are carrying as much as you are. Extremely comfortable and perfect once you set it up. Watch the video.

The waist belt has PALS webbing on the wings that is PERFECT to mount small pockets that would carry the small quick essential that one would need to get at, like small snacks or car keys.
For the last couple years, I have been using a Hazard 4 Patrol Pack for a camping/backpacking/bug out bag. As much as I like the pack, it was just too small for what I needed. I've never been an ultralight kind of guy, as I've always believed that it is better to have it and not need it than to need it and not have it, so I opted for a larger more capable system.

When I came across the Skycrane II, it was what I had been looking for. The idea of a system that was comprised of multiple packs was definitely something I could utilize. I also liked the fact that the two large packs have plenty of PALS webbing, both inside and out. Anyone familiar with this system knows how useful it can be. I read a lot of reviews and watched a few videos, and I decided to purchase the system.

When it arrived, I was pleased to see that the Skycrane appeared to be very solidly built. The stitching is superb, and the pack felt comfortable despite it's size and weight. This was the first pack I've owned with the aluminum supports, but once I adjusted them to me, it allowed my entire back to support the weight of the system instead of just my shoulders and hips. As I began to fill the pack, I realized the little brother alone held quite a bit more than I expected, despite being nearly the same size as the patrol pack.

I try to pack so that the items I need on a daily basis will be in the little brother (Mini Sawyer, knife, hydration bladder), while items that I can do without for a while (heavy jacket, extra cordage) are in the J79. I packed this way because the G1 little brother is the workhorse of this system. The single wide compartment gives you the space you need for larger items that would not fit in the J79 (or in my Patrol pack) such as cooking kits and compression bags. This allows me to carry the entire system to my site, then ditch the J79 and just use the little brother.

There are things that I honestly love about the Skycrane. I love that this system is three packs in one. It allows the me to decide how much bag I need for a particular scenario. I love that the little brother comes with its own straps, so that you literally unzip it and go, and the waist belt can very easily be switched between the bags. I love the idea that you have multiple places where you can place a hydration bladder, because it allows even more customization (if you don't own a hydration bladder I highly recommend one)

There are a few things I do not like about this system though. For example, despite having so many places to place a hydration bladder, I can't put one where I want without altering the pack (between the back and the main compartment of the little brother, where the rifle scabbard would go) because there is no hose access.
I also am not a fan of the large tube style compartments on the J79. They are rather narrow, which limits what they can hold, and there is no bottom access, so you have to dig out anything that is buried. There are also several open areas that can allow rain water to enter the compartments, but that can easily be fixed by purchasing a rain cover or even a tarp. The system is also quite heavy, even before you begin to load it, but it rides so well once it's on, that this isn't much of an issue.

Oh, and the cost of course, but you get what you pay for.
In the end, the pros greatly outweigh the cons. I realize that by making this a modular system, they would have to sacrifice a little to make it work. I really do enjoy this system, and I think it will be my go to bag until it falls apart, which won't be any time soon. It's not perfect, but it's pretty close.
Great pack. Had to buy the Scabbard after getting this pack.
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