K4 Frame System

Performance, comfort, and durability.

When it comes to pack systems for backcountry or mountain hunting, performance, comfort, and durability are paramount — and that all starts with the frame. We have spent the past 3+ years reimagining, developing, and testing what is now the all-new K4 Frame.

Total Weight

2lb, 15oz

Load Rating

150+ Pounds

Frame Structure

Custom Carbon Fiber

Built in the USA with Squadron material, carbon fiber stays, and premium foams...

Materials & Production Details »

Love this pack

I have been using the K4 frame for about 2 years now. Used for a couple of week long hunts and hundreds of miles of training hikes. This is the most comfortable pack I have ever used and the frame looks and feels brand new after hard use.

Best frame and pack K4

I started with your pack with a K3 last year and then I switched to the K4 and a 5,000 pack
I am 67 and I hunted mnt goat in BC. So I was in a pack all the time. The framed fit my back and hips perfect. Going up the mountain. Loaded to the gills with hide,horns and and part of the meat.
I depend on the K4 and every time it performs. Thanks

The best

All I'm going to say is it the only pack you won't want to take off

Buy once, cry once - worth every tear!

After watching a review of the K4 frame with the Shoot2Hunt pack on it, I decided to pony up the money for the system and give it a try. To say I was surprised/shocked is an understatement. I could not believe how much more comfortable this pack was than my other pack. I ended up buying one for my son who complained about hip pain from his pack (same as what I had previously as well and same issue). He immediately noticed the difference as well. It just rids so much better on your hips and you don't have any real weight/pressure on your shoulders. I feel like you shoulder straps are just there to keep the load from falling off of your back. The majority of the weight is on your hips and this belt is comfortable! In the past, at every rest, I'd ditch my pack. I rarely took my pack off this season! I'm ready to use it again!

K4 Frame

I have been using the K4 frame since it was released, and I have had multiple sized bags to go along with the frame. Just recently my son who is the same size as me wanted to use the K4 after we tried another company first. The other company was ok but there was a lot of movement in the frame when he was carrying his first Mule Deer buck out of the woods. I decided to get him the K4 Frame and just give him the 1800 bag size since most of the time we do day stuff together. He told me that we should have just bought the EXO right out of the gate. He kept telling me when we were out elk hunting how comfortable it was. I have been an EXO guy since the initial K1 was sold. I will remain an EXO guy as long as they continue to make great products and stand behind them like they have.

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K4 Frame System

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Performance, comfort, and durability.

Total Weight

Load Rating

Frame Structure

Built in the USA with Squadron material, carbon fiber stays, and premium foams...

Real World Reviews

Customer Reviews

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