IA4K Pack System

From: $288.95

Rated 4.97 out of 5 based on 18 customer ratings
(18 customer reviews)

The IA4K pack system is the most  versatile  hunting pack system. This design is perfectly suited for the 5-7 day extreme backcountry hunting adventure. The seamless transition from  pack system  mode  to  day pack  mode  makes this system unparalleled in the market.

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BAG SPECS

  • Triaxial  carbon fiber frame  (the foundation of our  system)
  • Total weight with Platypus Big Zip 1.5L Bladder &The Pannier Load Carrier 6.5 lbs.
  • Total frame weight 19 oz.

  • 4000  cubic inch capacity (expandable to 6500 cubic inch capacity utilizing "The Pannier Load Carrier")
  • 500D Cordura
  • Made proudly in Idaho, USA

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4.97 out of 5 stars

18 reviews

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What others are saying

  1. Chris Y

    Rated 5 out of 5

    Chris Y

    Hands down the best pack system I have ever used. Doesn’t matter how much weight or how many miles you are going, I can guarantee performance and comfort!

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  2. Charles Schubarth

    Rated 5 out of 5

    Charles Schubarth

    Initial Ascent gear is rock solid! Looking forward to using this for years to come!

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  3. Wyatt Walker

    Rated 5 out of 5
    Darn good pack

    Wyatt Walker (verified owner)

    Love this pack ever since I got it. Holds the load really well against your body and is very comfortable. Can’t wait to get some more miles with it this spring and fall.

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  4. Silvano Munoz

    Rated 5 out of 5
    Best pack on the market hands dowm

    Silvano Munoz

    This pack far exceeded my expectations in both comfort and performance. I could cary a 60lb load and i never felt the weight on my shoulders!!

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  5. Johnny

    Rated 5 out of 5
    Finally a pack that doesn't hurt

    Johnny

    Before using the IA4k, I had a mystery ranch metcalf. Everytime I packed an animal out with it, I would get the worst pain in between my shoulder blades. Not with the IA4k! This year I was able to pack out a bear, elk and deer all with this pack and by the time I made it back to the truck, I wasn’t cringing in pain. Do not hesitate to buy! Plus made in America!!!

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  6. Alex Stone

    Rated 5 out of 5

    Alex Stone (verified owner)

    Awesome pack!! Comfortable, durable, and lightweight! Best pack I’ve ever owned, hands down

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  7. Darren Dean

    Rated 5 out of 5
    Amazing pack

    Darren Dean

    I have used most of the top brand packs on the market and This pack is by far my favorite. I’ll as someone who has suffered a burst fracture of the L1 vertebrae, having a good pack is critical to me being able to hunt. I have run this pack for three seasons now and have logged well over 100 miles in it without issues. The little details make a big difference. Simple things like the little lips on the frame that a sling hooks on is something that makes these packs top notch. I have and will continue to recommend these packs to fellow hunters. Last but not least is one of the most important things in my opinion and that is customer service. Initial Ascent customer service is second to none. Every dealing I have had with them has been amazing.

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  8. Mike Richards

    Rated 5 out of 5
    Awesome pack!

    Mike Richards (verified owner)

    I’ve hauled out 2 elk so far with ease! Very comfortable and I’m sure it’ll outlast me!

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  9. Chris McKelvy

    Rated 5 out of 5
    Cadillac of pack systems

    Chris McKelvy

    So far my IA pack system has been an invaluable training tool and one of my favorite pieces of gear when I am actually able to get out hunting. I’ve carried up to about 100lbs more comfortable that I would have thought possible. My training weights consist of steel plates, various sand bags and my 4 year old son. So I’ve carried different shapes, sizes and even wiggly loads with not a single hot spot or issue. I’ve hunted with the pack in 4K/Lid and Pannier/Lid configurations and aside from some of my gear being less than size efficient and my “need” to over pack for almost all occasions they are both awesome setups. A person with more minimalist taste or more ultralight gear could probably get a weekend hunt out of the Pannier/Lid without a problem.

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  10. Larry Hultman

    Rated 5 out of 5

    Larry Hultman

    I’ve used this pack for two years now, doing everything from back country bulls to flyfishing 5 miles back in the wilderness for a few nights. It holds what I need and can pack out a lot of meat. 4 bulls in two years and my son and I packed em out one trip each. Easy to reach side compartments,and the frame itself is a dream. Once you get it buckled and tight the load doesn’t move. I Love this pack !

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  11. Brandon W

    Rated 5 out of 5

    Brandon W

    This is the most thought out and complete system on the market! With the ability to go big at 6500ci and in less than 2 minutes I’m in day mode at 850ci, then I can be at an additional 2500ci in my load carrier faster than you can say “great shot”!! With a 1.5 liter Platypus bladder that fits perfectly in the lid there is never any squishing my bladder while carrying a load! F#%=ing Brilliant…..just saying!
    AKA- Pack Whore

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  12. James Hansen

    Rated 5 out of 5

    James Hansen (verified owner)

    Love this pack. Super comfy. Haven’t quit put it through all the paces yet, but so far so good. More important to me is there customer service. Anytime I have had a question or concern about anything from any of there gear to shipping they have responded. And quickly too. I have never had to wait with. Keep up the great work

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  13. Jason Cagle

    Rated 4 out of 5

    Jason Cagle

    Why don’t you do some in sitka colors like sub alpine opticade firstlite colors or somthing

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    • Dennis Stokes

      Dennis Stokes

      Thanks for the feedback Jason. We are constantly working on different options for our packs. We are looking at several camo options and trying to decide if that is a road we should go down. Thanks!

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  14. Zach Diaz

    Rated 5 out of 5

    Zach Diaz

    These packs are where it’s at I’ve had my IAK4 for a few months and have put many miles on it. I love how diverse the pack is, and how I was able to adjusted it to fit my long torso.
    The dudes at IA provide great customer service and really go the extra mile for you literally you cannot go wrong with Initial Ascent.

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  15. TDouthit

    Rated 5 out of 5

    TDouthit

    I love this pack. Plenty of space for your backcountry bivy hunt, easily broken down for your daily hunts and it’s attached to this best pack frame I’ve ever used. This unit was a vital part of packing in a camp and packing out 2 big bulls and 2 mule deer bucks. Dennis and Joe have placed countless hours in the trial of these packs and it paid off for me this year. The details of the bag are listed above and I’d challenge anybody to find a better bag on the market (to include customer service). Not only is this my go to hunting bag but if I were to deploy again it would go with me. This is a first class hunting pak system, backed by first class customer service.

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  16. Jeff M

    Rated 5 out of 5

    Jeff M

    I’ve used the IA4K for over a year now, and this pack system has satisfied nearly all of the needs I want in a pack. The versatility and comfort are unmatched. The features are very well thought out, and really provide a user friendly pack solution. Likely my favorite feature is integrated gun strap notch in the frame. It doesn’t sound like much, but it eliminates the distraction caused by wrestling with your gun sling while hiking. I also really like the water storage in the lid, the external tripod and spotter pockets, and the adjustment versatility. All in all, this is the one of the best designed packs on the market. And, at a little over 5 pounds for the whole kit, you are not sacrificing weight for functionality.

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  17. Steven E

    Rated 5 out of 5

    Steven E

    This pack is amazing. I’ve tried several packs on the market, with each one having its ups and downs, but this pack changed everything for me. It is comfortable, light weight, and extremely versatile. These packs have changed the way I hunt and hike forever. If you haven’t tried one of these packs you don’t know what your missing.

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  18. Nathan Habbyshaw

    Rated 5 out of 5
    Exactly what is advertised

    Nathan Habbyshaw (verified owner)

    Got this pack for its claim of hauling heavy loads really well. It is also supposed to keep the weight on your hips without sliding down on your butt. It does everything promised really well no slipping and carry’s weight great and customer support can’t be beat.

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