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The space you need for expedition-style adventures.
The K4 7200 weighs less than 6lbs and can carry 10+ days of gear with ease.
Load Rating
150+ Pounds
Total Weight
5lb, 15oz
Total Internal Capacity
7,828ci
Expanded Dimensions
13" x 43" x 10.5"
PACK FEATURES
Designed for simplicity, versatility, and efficiency.
Any Load. Any Time.
Any Load. Any Time.
Quickly separate the bag from the frame and carry any load between the bag and frame. Compression straps built into the frame offer secure compression for quarters, boned-out meat, load cells, or similar items.
Roll-Top Access & Compression
Roll-Top Access & Compression
All K4 Bags feature roll-top access into the main bag. The roll-top also allows you to expand/contract the pack volume as more/less space is needed.
Efficient Zip Access
In addition to the roll-top access into the main bag, all K4 Packs feature front zip access. The K4 5000 has horseshoe-shaped zip access, while the K4 3600 & K4 7200 feature a full-length straight side zip.
Front Stretch Panel
Front Stretch Panel
A zippered front panel built with specialized stretch fabric offers quick and secure access to items you need throughout the day, such as an extra layer, a glassing pad, gloves, or similar items.
Full-Length Side Pockets
Full-Length Side Pockets
Every K4 Pack features full-length, zippered side pockets on both sides of the bag. The pocket is pleated, offering spacious storage for full-size spotting scopes, even when the main bag is full.
Top-Entry Side Pockets
Top-Entry Side Pockets
Built with stretch material, both sides of every K4 bag feature top-entry side pockets that work great for tripods, trekking poles, water bottles, and the like. The pack's upper side compression strap keeps tall items secure.
Always Accessible
Dual-compartment side pockets feature a quick-access compartment, keeping essential items easily accessible while you are wearing the pack. Perfect for your headlamp, gloves, phone, snacks, or other commonly used gear.
Secure Attachment
Secure Attachment
Laser-cut MOLLE panels on the hipbelt and shoulder harness offer secure mounting of K4 Accessories, as well as 3rd-party MOLLE-compatible accessories and holsters.
K4 Lid Included
This K4 Pack System includes the K4 Lid, which offers two storage compartments that add nearly 650ci to the pack's capacity. The lid also works great as a compression panel when packing out a skull and antlers at the end of a successful hunt.
Water Bladder & Wet Storage
Water Bladder & Wet Storage
All K4 Bags feature a dedicated water bladder compartment. The waterproof lining and bottom drain grommet keep your gear dry if your bladder leaks. The area also works great to keep wet items (such as a tent fly) separate from the dry gear inside the main bag.
Built for Bows. And Rifle Ready.
Built for Bows. And Rifle Ready.
Integrated compression straps on the face of the pack work great to secure your bow to the bag. For rifles, we have a Quick-Release Rifle Carrier accessory, or you can also strap your rifle directly to the face or side of the pack.
Lock-Down Every Load.
Lock-Down Every Load.
All K4 Packs ship with a pair (1 male, 1 female) of accessory locking buckles, which are perfect to secure awkward loads. Use them on shed antlers, your weapon, or more. Additional locking buckles can be added, if needed.
MADE IN THE USA
All of our Packs and Pack Accessories are built in our hometown of Boise, Idaho, USA. We only use the highest quality materials — such as MIL-SPEC 500d Cordura, YKK Zippers, and our custom-engineered carbon fiber frame stays.
K4 FRAME
Built for comfort, performance, and durability, with a proven load rating of 150+ pounds.
PERFORMANCE IS THE PRIORITY
Learn what sets K4 Pack Systems apart...
| K4 2200 | K4 3600 | K4 5000 | K4 7200 | |
|---|---|---|---|---|
| Weight: Bag Only | 1lb, 10oz | 2lb, 1oz | 2lb, 6oz | 2lb, 8oz |
| Weight: Bag + Frame | 4lb, 9oz | 5lb, 0oz | 5lb, 5oz | 5lb, 7oz |
| Weight: Bag + Frame + Lid | 5lb, 1oz | 5lb, 8oz | 5lb, 13oz | 5lb, 15oz |
| Capacity: Bag Only | 2,192ci | 3,620ci | 5,010ci | 7,180ci |
| Capacity: Bag + Lid | 2,840ci | 4,268ci | 5,658ci | 7,828ci |
| Dimensions: Expanded | 7" x 25" x 10.5" | 8" x 37" x 10.5" | 9.5" x 39" x 10.5" | 13" x 43" x 10.5" |
| Dimensions: Compressed | 2" x 25" x 10.5" | 2.5" x 25" x 10.5" | 3" x 25" x 10.5" | 3.5" x 25" x 10.5" |
WHERE CAN I TRY A PACK?
We do not have dealers or retailers and only sell direct-to-consumer online. (If you are in the Boise area, you can "try and buy" at our shop.)
We do have a 30 Day Trial Period, allowing you to receive the pack, test the fit and function, and make sure the pack is exactly what you need. LEARN MORE
WILL YOUR PACKS FIT ME?
Yes! With 4 frame height options and 5 hipbelt sizes, the K4 Frame included with all of our K4 Packs can fit just about anyone. FIND YOUR SIZE
DO YOU HAVE A WARRANTY?
Absolutely. Our lifetime guarantee covers defects in materials and workmanship for the lifetime of the product, for the original owner. OUR GUARANTEE
WHERE ARE YOUR PACKS MADE?
We build all of our K4 Packs & Accessories in Boise, ID, USA. We also source US-Made materials whenever possible. MATERIALS & PRODUCTION
HOW DO I _________ WITH A K4 PACK?
We have well over 20 "how to" videos that demonstrate just about everything you may want to know how to do. See all of the How-To Videos for K4 Pack Systems.
I STILL HAVE QUESTIONS — CAN YOU HELP ME?
As a small company, we pride ourselves on offering personal service, and we would love to help you out.
Everyone on our small team is involved with building, testing, and the use of our products for their personal hunts. WE ARE ALL EXPERTS ON OUR GEAR, AND WE ARE HERE TO HELP.
Give us a call at 208-995-4688 or email support@exomtngear.com and we'd be glad to help with any questions you have.
You can also explore more answers to common questions on our FULL FAQ PAGE.
Real World Reviews
After 60 days of using and abusing the K4 Prototype last fall, I can confidently say that it is the most comfortable, complete, and capable hunting pack that I have ever owned. It was clearly created for serious hunters, by serious hunters.
The new K4 is the best pack I have used to date. I used a K4 Prototype on 5 big game hunts this past fall and could tell that it was strategically built for comfort and is tough enough to withstand the most extreme hunting and backpacking adventures.
I love the simplicity of the K4! It has everything you need, and nothing you don’t! After testing the K4 Prototype last year, I was thrilled with the new system to detach the bag from the frame. And the new hipbelt design provides a noticeable increase in comfort.
J
The K4 is working out well for me. I've logged over 430 miles so far in 2025 rucking with it. For rucks, I configure it with two 32oz Nalgene sleeves and two hipbelt pouches for easy access to trail fuel.
For warm weather treks, I prefer carrying a larger 48oz Nalgene and was excited to get your limited release larger Nalgene sleeve. It successfully solved the elbow interference I experienced using the larger bottle in the 32oz sleeve. I also like the one larger Nalgene bottle solution while carrying my pistol on my right side versus a second Nalgene sleeve. I highly recommend the EMG Pack Holster from Ivory Holsters for the K4.
The K4 is extremely well thought out. Specifically, the angle of the cinch straps pulls heavy loads up and into the frame keeping them from awkwardly shifting side to side. I particularly like the versatility of the 7200 for winter camping/snowshoeing which suites my needs well. The pack's lumbar support and hip belt are the most comfortable I've experienced among at least 3 of your major competitor's packs. After the days where I rucked over 25 miles with the K4, I had zero hot/sore spots or sore hips and only experienced muscle fatigue in the shoulders common with any pack carrying heavy weight for extended periods of time.
The K4 has quickly become a favorite piece of gear! Keep up the great work!
R
Absolutely love my K4. I've worked my way up with hunting packs starting with an old Arcteryx pack to a hunting frame Alps, Mystery Ranch and now this. While all my packs did the job and packed out multiple animals I can confidently say the K4 surpasses them all in terms of load hauling, comfort and functionality. It definitely costs a premium but it delivers in terms of quality and ease of use. I would not hesitate to recommend it if someone is looking for a premium pack. I am 6'2" - 220lb - 34" waist. (tall and lanky kinda build). I purchased a large belt - 26.5" frame and I think it fits perfect. I love the size of the bag as well and for the weight difference between the 5000 and 7200 I'm glad I went for the bigger bag for extended hunts. I will most likely pick up the 2200 bag in the future for day hunts, not because the 7200 doesn't collapse down well enough but my OCD just likes a smaller tight package when a bigger bag isn't needed. 5 stars all the way. Awesome work EXO!
H
I tried all the major pack brands and I have found, through initial testing and my continued use, that the Exo packs are the best combination of comfort, stability, weight, and ruggedness. 10/10 would recommend.
A
I'm an Army veteran and spent a significant portion of my career carrying absurdly heavy & ill-fitting standard issue rucksacks. As a result, I have a lot of neck, back, and nerve pain that can flair up when carrying a heavy load... but not with the K4! It's a truly amazing and well-thought out pack. The load shelf is clutch and allows loads to be secured high and tight. The water bottle holders are seamlessly integrated for optimal comfort. The frame has slight flex to move with the body. Overall - I've never felt so good carrying a 100+ pound pack. I recently used this workhorse in the Frank Church Wilderness to pack out a muley buck and bull elk with my buddy (owner of a newer MR pack). In total, the packout was ~25 miles w/ +6K feet of elevation gain. The K4 performed flawlessly... so well that my friend is now set on getting a K4 (the main selling point to him was how tight and secure I was able to get my loads).
I highly recommend. The wizards at Exo Mtn Gear knocked this one out of the park!
J
Excellent quality and extremely comfortable during the hunt and during multiple pack outs. I’ve used many brands to pack out multiple bulls and the k4 is the best of the best.
