New Eberlestock Modframe and brooks packs

I have the frame. Only one outing with it and only a few miles. I do not have experience with an EXO or Stone Glacier to compare though.
So far the pack sits like it should, it hasnt moved on my, yet. It has a ton of straps for hauling. I like the locking straps and the front pull hip belt. These should have happened a long time ago.
I will post more after I use it some more.
 
Finally, another thread about this thing.

Just in from doing 4.5 miles, a dizzying 298 vertical feet, hauling a windbreaker and couple water bottles inside a large batwing and my wife's tenni runners lashed on...handled the load awesome...like 8lbs. Thought you would want to know! 🤣
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So I got one and I've only been out a couple times with it for some short hikes. Once with 35lbs and my rifle and once with a 55lbs plate.

Small sample size, but coming from the F1 mainframe (Kuiu before that), I'm really enjoying being able to get the weight up higher with the modframe. The auto locking buckles also work great so far. I don't see why it wouldn't be any less durable than the rest of Eberlestock's stuff overall, but I guess we'll find out. Bear hunt here in a week and a half. I'll try to pack a couple out and report back.
 
I used one for about 5-6 miles with 45-50lb in it. It is sooo much better than the F1 mainframe. The belt never slipped. The rubberized lumbar pad kept it planted. Load lifters are much higher. Shoulder straps are much improved… weight felt much better on it. It is a 4.5 frame so it’s about 1 - 1.5lb heavier than a SG, Kifaru, or Exo though if you have the load sling attached. It’s just over 4lb without it (4lb 2oz). It’s defiantly durable and probably will be just as comfortable. A good pick if durability and modularity is more important to you than weight and agility. It does flex because the frame is a U shape with polycarbonate stabilizing at the top which is also a huge upgrade from the mainframe. The Molle belt layout is better than any other brand I think. Exo is missing a row of Molle/PALS in my opinion. Love the loops just for lids. You can put one on from any brand. I prefer the mystery ranch daypack lid they just discontinued to the mod lid.


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The Molle belt layout is better than any other brand I think. Exo is missing a row of Molle/PALS in my opinion.

The nearly full length laser cut molle on the Mod pack frame was really the deciding factor for me over the Exo frame - I wanted to be able to have my hydration pouch, extra straps, couple simple "survival" items, and kill kit always on the frame no matter what bag setup I was using that day...or no bag at all. I posted a pic of that setup in one of the other Mod frame threads.
I did a ruck this morning with 65# sandbag - can't say it was any better than with my F1 which I have pretty dialed for me. I've got a couple tweeks i want to do that I think will make me a bit happier - I gotta get the harness anchor point for the load lifters in a better position - right now they are a smidge too far back and kind of pull my harness back against my collar bones vs more upward. I gotta move the lumbar pad up a bit and may bevel it's lower edge to more closely match my lower lumbar area - felt like it was smidge low and pushing down on my pants' belt. Just tweeks.
Oh, and the load doesn't seem to want to stay put as well as on the mainframe - same 65# bag on my Mainframe would stay in same position for multiple rucks. I wonder if the narrower profile and flexibility of the Mod frame contributes to some slack developing under load and work. Definitely allowed the sand to sift to the bottom then slid down the pack. I'll try it with the new load sling thingy and same weight next week.
Not what it looked like when I took off - gravity and sand a tough combo:
PXL_20250822_173251567.MP.jpgScreenshot_20250822-125132.png
 
I made a couple adjustments as mentioned above:
-positioned the shoulder straps higher which effectively moved the load lifter anchor farther forward
-i pulled the lumbar pad with the intention to bevel the body side lower edge because it felt like it was bumping down on my pants belt. Lo and behold it was already beveled...but the bevel was on the top side and square edge on bottom. I simply reversed that orientation as pictured here, reinserted it, and velcro'd it as high in the pocket as I could.
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-i reinstalled the load sling thingy to use as just strapping my sandbags on was not holding them in place.

65# sandbag today along with whatever the frame plus molle'd hydration pouch and kill kit - probably smidge over 70#. All the little niggles mentioned before solved. Worked great, I think it's dialed! 👍 PXL_20250828_160957069.MP.jpg

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Perceived effort even better/less...but it was cooler
Screenshot_20250828-120108.png
 
I made a couple adjustments as mentioned above:
-positioned the shoulder straps higher which effectively moved the load lifter anchor farther forward
-i pulled the lumbar pad with the intention to bevel the body side lower edge because it felt like it was bumping down on my pants belt. Lo and behold it was already beveled...but the bevel was on the top side and square edge on bottom. I simply reversed that orientation as pictured here, reinserted it, and velcro'd it as high in the pocket as I could.
View attachment 927573
-i reinstalled the load sling thingy to use as just strapping my sandbags on was not holding them in place.

65# sandbag today along with whatever the frame plus molle'd hydration pouch and kill kit - probably smidge over 70#. All the little niggles mentioned before solved. Worked great, I think it's dialed! View attachment 927577

View attachment 927579

Perceived effort even better/less...but it was cooler
View attachment 927588

Why the Exo belt with the mod frame? Did you ever have an Exo k4 to compare the two? I found the mod frame stays put better on my pack than the mainframe ever did with the normal belt and the large padded belt.


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Why the Exo belt with the mod frame? Did you ever have an Exo k4 to compare the two? I found the mod frame stays put better on my pack than the mainframe ever did with the normal belt and the large padded belt.


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I mentioned it in one of the other Mod frame threads but the "one size fits all" belt that comes with the Mod frame just felt too small for me - it barely seemed to reach past mid-point of my iliac crests. Wasn't a big deal at light loads but when I hauled the 65# sandbag on it felt like the buckle portion in front was really getting pulled back into my belly. I don't have a K4 frame but I had installed a K4 belt on my F1 Mainframe, the large size, so I just swapped it over to the new Mod frame and it wraps well around my pelvis and gets rid of that tension with heavy weight that I felt in the front of the smaller Eberlestock belt.
Eberlestock could easily solve the belt issue by offering different size belts for different size people...but for some reason they don't. The new belt certainly feels better than the older ones and has obviously a different foam...if it came in my size I'm sure I would have just stuck with it. If I think of it, I'll lay out and snap a photo of the Eberlestock stock belt next to the K4 to show the difference.

If the K4 frame had more of a full length molle, I would have likely just went with it (price wise I'm there with Mod Frame + K4 belt), using my Eberlestock quiver of bags/pouches/etc and set it up the same as I did the Mod frame with an ever present molle mounted hydration pack and kill kit...likely there will times or days where that is all I am going to need for the day:
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The K4 molle set up, I could have only mounted one pouch at the top (I think the shoulder straps actually take up a couple of the available molle slots as well)...just being picky and might as well be able to set stuff up just like ya' like it!

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