I thought I’d try my hand at writing a quick review for the Durston Kakwa 40 pack since it is a new release, completely different than his last pack, and I’m sure others are considering buying it.
More: See the Backpacking Light Durston Kakwa 40 Review here. – Mods
I have been trying to find a pack that fits me well for… a very long time. The Kakwa seemed to have the right collection of features I was looking for, so I pre-ordered it earlier this year and just received it Friday.
tl;dr nice pack, shiny new Ultra 200 fabric, fits great, excellent value, so far so good!
I went for a 10 mile, 2500ft elevation hike yesterday with the pack loaded to 25 lbs. Overall, I’m very impressed with how the pack carries. The frame and hip belt system transferred all the load to my hips. The S-straps did not rub my sloped shoulders like J-straps do.
Overall, this is the best-fitting pack I’ve ever worn, but I kind of suspected it would be given what I’ve learned from other packs I’ve tried. I am 6’4″ with an 18″ torso, a 32″ waist, and a fairly curved spine, and I have steeply sloped shoulders. I purchased the medium torso size. I suspect this pack fits me well because:
- It has a U frame (similar to Gossamer Gear but the stays are spaced further apart) which fits my curved spine well (the Delrin loop frames like Six Moon Designs uses do not work well for me). The stays can be bent and shaped to your spine, though it actually fit me well out of the box (I had to bend my GG Gorrilla stays to fit my back comfortable).
- The S-straps sit more comfortably on my sloped shoulders than J-straps do.
- The dual-strap hip belt comfortably cup my hips. I first noticed this when trying on my wife’s Superior Wilderness Designs pack (they also have a dual-strap design), and I’m glad my observation held up on this hike. I just did a week on the trail with a Gossamer Gear Gorilla before this hike, and I’ve always had to frequently adjust that hip belt to avoid hot spots when hiking with the Gorilla. I didn’t think about the hip belt once while hiking with the Kakwa, and I had no hot spots.
For context on packs I have tried/owned, I have experience with the following packs:
- Gossamer Gear Kumo (frameless)
- Gossamer Gear Gorilla (U-frame, 2017 40L version)
- Bonfus Framus 48L (frame pack w/ 2 separate frame stays)
- Six Moon Designs Swift V and Minimalist (Delrin loop frame)
- Various REI, Osprey, Gregory, and Deuter frame packs
Stepping back from fit, here are a few other observations about the pack:
- Build quality and stitching appears excellent. Dan mentioned in a podcast (iirc) that the pack is made in the same factory that makes Arcteryx products, so this was expected, but still nice to see since I’m sure they don’t have as much experience with Ultra fabrics. I’ve got lots more backpacking lined up this year, so I will be sure to comment if I notice any issues with the build quality.
- The dual-strap hip belts are reverse pull. I like to cinch the hip belt fairly tight, and reverse pull straps are so much easier to tighten.
- Another small but nice aspect of the dual-strap hip belts is there is a single length adjustment instead of two per side (like you see on ULA and SWD hip belts). At first I was worried it would affect the fit of the hip belt, but it doesn’t seem to. One less adjustment to worry about!
- The side pockets are stretchy and good size. One pocket is cut at an angle for easy water bottle access, and that pocket can hold 2 1-liter Smartwater bottles. The other pocket is a bit deeper and cut horizontally. I was able to stuff my Deschutes tarp + net tent + polycro groundsheet into it, but it was a bit tight. A smaller shelter should fit no problem (e.g. single wall DCF tent or tarp + bivy).
- The roll top design + Y-strap is great, and I love that he didn’t add any buttons or velcro to the top of the fabric. I’ve never understood why other pack makers do this in the first place, since you roll and snap it.
- Compared to my GG Gorilla, the exterior pockets have less volume. In particular, the front mesh pocket is much lower volume (I’m guessing 3-4x less usable volume). Keep in mind the Kakwa pack uses a knit mesh compared to GG’s stretch mesh, so it’s not an apples to apples comparison. Honestly, having used other packs, I think GG’s exterior pockets are particularly big, and I was just used to it. Initially I was a bit worried, but this actually forced me to stop shoving lots of small items into the exterior pockets, which will ultimately make it easier for me to find things. If I had to make a request, I would ask for a bit more volume or stretch in the front mesh pocket so I can more easily shove a puffy or fleece into it.
- The knit mesh will (hopefully) be more durable than the stretch mesh, I put a small hole in the stretch mesh on my GG Gorilla and it grows every time I use the pack.
- There is a zipper pocket sewn into the larger side pocket. In the video, Dan puts his cap in the pocket. I usually don’t take my cap off, and I can’t think of another use case for this pocket. Plus, if you stuff the size pocket to capacity, there is no real volume left for the pocket. So I’m not really sure yet what I will use this pocket for.
- There is one length of compression cordage on each side of the pack. This allows for limited compression of the upper half of the pack body. Keep this in mind if you are accustomed to having more compression straps lower in the pack body. Personally, it’s the perfect amount of compression for me. The pack volume tapers from the top to the bottom of the pack (similar to SWD packs), so it’s easy to fully stuff the bottom half of the pack with quilt/shelter/clothes/etc. So even if you ate into the top half of your pack volume, you can roll the top down more and tighten the compression cordage to keep things snug.
- The price point is really excellent. I don’t know of any other frame packs on the market that use Ultra 200 fabric for $250.
- The pack is being sold through Kaviso. I’ve never used Kaviso before, but their customer service was excellent. I was in the middle of a move, so I had to coordinate some shipping changes with them, and Taylor was super helpful and responsive.
I will be using this pack for several weeks of backpacking this year, so I may post a more detailed follow-on review after those trips. I’m confident I can carry a week of food, probably more, and all my gear in this pack. I’ll also try loading it up more (30-35 lbs) to test if the pack is still comfortable at higher weights. Durston claims the pack “comfortably and effectively manages loads up to 45 lbs” and I kind of want to test that claim :).
Hope this is helpful!

