Specs
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Weight: 4 lbs. 8oz.
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Dimensions: 26"h x 10"w
Customers say the frame is extremely comfortable, lightweight, and often mention the modularity and adjustability.
Highly rated for:Comfort Under Load, Modularity, Adjustability
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With the Modframe™, we’ve taken everything that made the Mainframe great and rebuilt it from the ground up. This is more than an upgrade; it’s a next-generation hunting platform.
The Modframe™ is a purpose-built foundation for serious alpine hunters who demand performance, durability, and flexibility in their pack systems. Built leaner, stronger, and more customizable than ever before, it offers new levels of fit, comfort, and load control, and it’s fully compatible with every pack, bag, and accessory in the Hunt EMOD™ system.
When it’s time to pack out, detach your pack, strap your game bags into the load-panel, and reattach your pack. This keeps the heaviest weight close to your back and reduces fatigue.
Revamped Suspension System:
Modframe ™ features a reimagined shoulder and hip-belt harness with over 50% more padding than our previous design. It wraps the shoulders and lower back in form-fitting comfort, while extra-tall load lifters keep weight off your traps and over your center of gravity, allowing you to go farther without wearing down.
Integrated Load Panel:
At the heart of Modframe™ is a low-profile load panel that replaces the traditional L-frame shelf. This keeps weight closer to your center of gravity, improving posture, energy efficiency, and control during heavy pack-outs.
Supreme Durability:
The Modframe™ is engineered for years of hard use in alpine environments. The frame itself is built from aircraft-grade aluminum and polycarbonate, efficiently blending strength and flexibility. Its interior panel flexes laterally with your stride, allowing the pack to move with you, while the vertical frame structure keeps gear centered and tight to your back.
Weight: 4 lbs. 8oz.
Dimensions: 26"h x 10"w
SKU: SKU:MO1MJ
Hunt EMOD
| Pack | Capacity | Price | Frame Fit | Best For |
|---|---|---|---|---|
| 700 c.i. | $69.00 |
✓
MODFRAME
✓
Mainframe II
| Day Hunt | |
| 2,800 c.i. | $149.00 |
✓
MODFRAME
✓
Mainframe II
| Day Hunt | |
| 3,500 c.i. | $189.00 |
✓
MODFRAME
✓
Mainframe II
| Day Hunt | |
| 5,000 c.i. | $219.00 |
✓
MODFRAME
✓
Mainframe II
| Multi-Day | |
| 7,000 c.i. | $299.00 |
✓
MODFRAME
✓
Mainframe II
| Expedition |
All packs attach to both frames via the EMOD quick-attach system. No adapters or extra hardware required. Frames are sold separately.
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Often Bought Together
Based on real customer orders.

Know Before You Buy
Very impressed with this pack. I put about 12 miles on it during a horseback hunt, and it was easily the most comfortable pack I’ve ever used. I’ve packed around 50 lbs in it so far with two large Batwings, a lid, and my bow, and it carried the weight extremely well. Super comfortable and plenty of room for everything I needed.
Just what I was looking for.. Hopefully in the next couple weeks I will get to pack a deer out using this system. Over the past few years ive been using a pack that I was unable to remove the pack and when you have to make a second trip in it was horrible that I had to take the pack and not just the frame. This past weekend I was able to use the pack hiking with camera gear and a tripod. The mod frame was comfortable and the brooks pack did the job. I look forward to putting the miles on wearing this pack. I plan on doing a full review on my YouTube channel in the near future.
This is a mixed review. First, the pack did what I needed it to do during a five-day hunt. However, I’m disappointed with its durability and no longer have confidence that it will hold up to the use I expect from an Eberlestock pack.
During the hunt, the pack saw relatively little abuse. At some point, a tear developed on the bottom, although I’m not sure exactly when or how it happened. The pack was not exposed to anything particularly sharp. Its primary use was going from my house to my truck, to my ATV, to my back, and into the tent. I also made a point of not setting it down on sharp rocks or branches.
For a pack at this price point, and from a company whose products I’ve historically trusted for their durability, this is disappointing.
I’ll likely return to my Skycrane II with the Little Brother and Super Spike Duffle, which I’ve used for roughly ten years. Those pieces have been put through the wringer, and aside from some blood stains, they still look and function like new.
It seems that some durability may have been sacrificed in the move toward lighter-weight, more modern packs. While I may continue using the Modframe for hiking or camping, I don’t plan to rely on it for my hunts.
Overall, the pack performed well during my five-day hunt, but the early tear has significantly reduced my confidence in its long-term durability.
My personal complaints, I like to carry my 45 OWB and it seems that I will have to find another place to carry due to the massive hip belt straps.
The other engineering feature I can’t grasp is why the packs zip up to the frame and not down on the frame? Yeah you have a bungy that holds it, but it still pulls down and offers mediocre support for the heavy stuff up high.
Outside of the 2 things, the pack becomes awesome.
Haven't hauled anything heavy but this pack is of the best quality and comfortable also bought bat wings and the just one pack and that pack is awesome as well don't overlook it!!
Super comfortable. I love how easy it is to convert to meat hauling mode. Also love the modularity. The ability to switch out the bags is awesome. I have the brooks 3500 for day trips and the 7000 for extended hunts. 10 out of 10 would recommend!
I bought this pack for a Bighorn sheep hunt in CA. I was not able to use it much before the hunt (injury) and was concerned how it will perform. I wanted to get some miles on it loaded, but that didn’t happen. I’ve used eberlestock products before, but mainly EDC stuff. Was very happy with the performance of the pack! The load was well balanced with the way the pack is designed. Highly recommend this bag.
I got the Modframe in October, 2 days before they went on their Black Friday Sale. I asked Eberlestock if I could get credited for the price difference and they actually hooked me up! I love this company now...and I ended up spending more than that on their gear after I got the credit.
The Modframe itself is everything I was hoping for. I don't hunt at the moment, but I've been rucking and hiking with heavy weight trying to get back into shape. I started looking for alternatives to my Alice ruck after I had 75lbs in it and it rubbed a hole in my back that is now a scar. With the Modframe I usually carry 75-90lbs up a 1000 foot mountain in less than a half mile. This pack almost makes 90lbs seem light. Although I did try 125lbs 2 weeks ago and that was a little too heavy for me, but the Modframe handled it with ease. I don't know what they will ever do to improve it because it so comfortable to carry heavy weight. Putting bags on and taking them off is so easy it is almost unreal. I was even putting my 55-60lb kids in the brooks 7000 and swinging them around for a durability test. At first I was a little worried because the bags are so light, but me and the boys gained confidence in them very quickly and they wore me out and were having a blast.
I can't say enough good things about this frame and bag, they are everything that I was hoping for and more. I know that it will carry as much weight as my spine can handle and it will do this in comfort and not rub holes into my skin.
Used the Modframe Pack with the Batwings to pack out a whitetail buck over 1.5 miles in PA public land. Once you have the pack adjusted properly to fit your personal frame it is unbeatable. Packing out a buck that far is rough in general but I will never drag again!
Helped a buddy pack out his first ever elk using this mod frame. Handled the trek and the weight well. Comfortable to wear for hours. Also washed stains out well.
The Modframe is a truly versatile pack with endless options to mount storage and equipment and can even be used to add weight and train for your next hunt. Very strong out of well made materials, light and very comfortable. Completely satisfied
Last year I suffered a bad injury and have to have my left shoulder joint completely replaced. It was virtually impossible for my shoulder to bear any weight at all. No packs that I had even seemed remotely possible to use, and I figured there was no way I could go on the hunt I had planned. I ordered this pack and fit it as directed, went on the hunt, and was hauling loads up to 80lbs, and I never even thought about pressure on my shoulder. Absolutely amazing. I'm sold on Ebelestock gear! And yes, I got my moose!
Paired this frame with a brooks 7k for a 10 day DIY Public land trip. And have absolutely 0 complaints. Hauled three bulls of the mountain and would haul three more tomorrow. Would love to see a Eberlestock water bottle pouch to add to my waist band!
Very happy with the design and functionality of the mod frame
I have taken out a couple of hunts and even though I haven’t “used it,” to carry a harvest, the fact that it’s light weight and comfortable makes hiking easier. I like the design in that I do not have to carry an actual pack(unless I want bring more things), for a small morning or evening hunt.
I was using a newer military issue rucksack for hunts, which worked to carry my spotter’s scope, a small stool, snacks, etc but I didn’t have space for a harvest. Where I hunt, our hills can be extremely steep with tall shrubs and weeds, making it hard to see the ground for hazards. So, for me to bring harvest back to my truck, via a fireman’s carry isn’t the smartest.
The product seems well built. I haven't had a chance to use it in the field yet, so I am unable to give a proper review.
I am highly impressed with this frame it is a huge improvement over my last pack.
Awesome
The inly thing I have to compare it to is the ruck sack I carried in the army. This thing is infinitely more comfortable. I like how it keeps the weight off my shoulders and the super thick lower back pad. The only thing that hurts after a long hike is my thighs.
Very nice piece of equipment. Used for elk archery in unit 12 Idaho (steep country)
Paired with batwings and am super happy with the setup.
Very adjustable, comfortable and very nice to look at.
Huge lover of all Eberlestock bags. My wife and I love y’all’s stuff.
Im on my second season with this frame and the Brooks 3500 pack. I haven't had any problems with the pack I love its modularity, price, fit and ability to pack meat but the frame or straps are pretty Squeeky. If i could give the frame a star rating it'd be 4 out of 5 just because of the inherent squeek. The Brooks 3500 pack is a 5 of 5 though.
I haven’t hunted with the Mod frame yet .
I believe it’s going to be a game changer this fall .
Great frame. Have been using internal frame packs, and they ride well, but it’s difficult to add on extra tools. This frame enabled me to carry the extra stuff close to my body, and I can adjust the pack I’m taking. Love it.
Taking it on my north idaho archery elk hunt in September and whitetail later in oct nov. dirwt time teying it out thsi year
Everything you need to know before you gear up. Still stuck? Our team is ready to help.
We strive to ship your order the same business day. Most orders placed by 2 p.m. local time on weekdays go out that same day. Orders placed on weekends will ship the following Monday. For faster shipping, choose an expedited FedEx or UPS option at checkout.
Yes. Active duty military, veterans, first responders, and law enforcement qualify for our discount program.
See Military DiscountWe back our gear with a Lifetime Warranty against defects in materials and workmanship. If an Eberlestock product fails under normal use, we'll repair or replace it.
View Warranty DetailsEasy returns and exchanges within 45 days of purchase for:
Please return items unused and with original packaging. Missing tags or bags may result in a 10% restocking fee.
Start a ReturnUse our Dealer Locator to find authorized Eberlestock retailers by city, state, or zip code.
Find a DealerA properly fitted pack rides better and hauls heavier loads more comfortably. Adjust your torso length, hip belt, and shoulder straps for the best fit.
Spot clean with cold water and mild soap. Avoid bleach, harsh detergents, and solvents. Never machine wash or tumble dry. Air dry fully before storing.
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Read Full Privacy PolicyI don't think there is any other company making packs and gear as good as Eberlestock. This Brute 4500 is bomb proof but still light weight, fits my thin to average sized body extrememly well and the options for loadout is second to none. Killer gear in my opinion.
it's alright
This is perfect and does exactly what it’s supposed to.
Awesome quality & functions
Very comfortable and easy to add to my Brute Scout. Definitely an upgrade that’s worth it for compatible bags.
Attached very easily and holds my bear spray tightly and makes it easy to deploy
I love it, I have the regular size and a Glock 19 with an optic fits great.
Its an all for one pack, it works for training,travel and recreation. This bag is just what the dictor ordered. Great Quality and craftsmanship.
Used it instead of a satchel for a recent flight to Las Vegas. It’s an excellent pack and the design didn’t cause me to sweat on my back. Love this thing.
I got this pack just in time for Kinetic Comps Sniper Challenge. I did a couple 60lb walks with it the week before the event and it felt great. Competing the pack at about 35lbs was perfect for the rucks we did no issues at all. Only thing to note is the GP pouches when wearing a battle belt dont work great so I had to put those on the side of the pack. Also smaller profile is perfect for matches so you don't carry too much useless gear.
The large fits well on my Brute 3500 waste belt with enough room to not interfere with walking and arm movement. Plenty of volume plus the outside zipper stretch pouch for quick access to gloves, etc
I bought this as a gift for my girlfriend after I picked up the Upranger because she wanted a smaller/duffle version. She absolutely loves it! It has everything she needs for the range/Tactical Games and still has plenty of room left! Well worth the money!
Last year I suffered a bad injury and have to have my left shoulder joint completely replaced. It was virtually impossible for my shoulder to bear any weight at all. No packs that I had even seemed remotely possible to use, and I figured there was no way I could go on the hunt I had planned. I ordered this pack and fit it as directed, went on the hunt, and was hauling loads up to 80lbs, and I never even thought about pressure on my shoulder. Absolutely amazing. I'm sold on Ebelestock gear! And yes, I got my moose!
Best bino harness by far. I got the range finder pouch and hand warm with it. Haven’t had a chance to test the hand warm yet but it’s like the rest I’m sure it will be great.
I was looking for a fanny pack that I could carry my compact 9mm (with red dot). It fits perfect in the back pouch. I wanted something that wasn’t flashy or too bulky. This bag has checked all of those boxes. Good build materials as well. I’d highly recommend.
Customers praise exceptional build quality, durability, and thoughtful design across all product lines. The store excels in tactical and outdoor gear with superior materials, comfort, and functionality. Many reviewers highlight excellent customer service and l... Customers praise exceptional build quality, durability, and thoughtful design across all product lines. The store excels in tactical and outdoor gear with superior materials, comfort, and functionality. Many reviewers highlight excellent customer service and lifetime warranty. Products are highly versatile for hunting, hiking, EDC, and professional use.
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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.
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Your ExpertVoice deal.
$[Deal Price]
$[Original Price]
Discount applied at checkout.
On sale now — lower than your ExpertVoice discount.
Not eligible for ExpertVoice discount.
You’ll see your ExpertVoice discount at checkout.