Kakwa 55

Sale price$199.00 USD

Size: Small
Fabric: UltraGrid

The Kakwa 55 has been updated for 2025 with larger shoulder strap pockets, larger hipbelt pockets, a more ergonomic design for the hipbelt and shoulder straps, and 1 oz reduction in weight. These packs are in stock now in both UltraGrid and Ultra 200X fabrics (see FAQ for differences) except some sizes in Ultra 200X are sold out until early December. Updated pictures coming soon.

The Kakwa 55 is our premium ultralight, multi-day pack designed from the first principles of load carrying and ergonomics to provide the greatest function, comfort and usability for an ultralight pack. Developed from Dan Durston’s attention to detail and thousands of miles of backpacking experience, the Kakwa 55 has class leading quality, load carrying, materials, and pocket design while weighing under 2 lbs (900 g).

LOAD CARRYING

The Kakwa 55 brings genuine load carrying capability into the sub 2 lbs weight class. 

Other packs this light generally sacrifice load carrying ability by omitting load lifters, lacking horizontal structure, and relying on less ergonomic shoulder strap and hipbelt shapes.

The Kakwa 55 solves this tradeoff through more efficient design and advanced materials including UHMWPE fabric and hollow aluminum tubing. Hollow aluminum tubing is a more efficient use of structural weight than the solid metal bars found in competing packs. We use this material to create a rigid frame with both vertical and horizontal structure at the same or less weight than competing packs that only have vertical structure.

This frame connects directly to the hipbelt for maximum load transfer and directly to the load lifters, which are rare on packs this light yet highly functional for shifting more of the weight off your shoulders and onto the hips. A capable structure is nothing without an ergonomic connection to your body, which is why the shoulder straps have a carefully developed S shape to contour around your upper body, while the hipbelt uses a dual strap design which cups your hips and has reverse pull 2:1 leverage for easy tightening. The result is a pack that comfortably and effectively manages loads up to 45 lbs.

EFFICIENT ACCESS

Efficient access to your gear is a hallmark of ultralight pack design as it allows you to spend more time covering miles instead of digging through your pack.

What is needed is not a high quantity of pockets but rather a pocket layout that has been carefully considered to compliment and allow for a diverse range of storage possibilities while remaining simple enough to be easily organized.

For this, the Kakwa 55 has four types of pockets to optimize on-the-go access to your gear. First are the hipbelt pockets, which are designed to reliably operate one handed and easily accommodate medium sized items such as snacks, sunscreen, phones, and headlamps. That storage is augmented by dual top opening shoulder strap pockets which provide an ideal place for your phone for quick photos and navigation. These pockets also work well for small water bottles, sunglasses, and bear spray.

Additionally there is the innovative QuickPocket which consists of an easily reached compartment in the sidewall of the left side pocket. This allows you to stow and quickly access even larger items than normally possible, such as hats, mitts, maps and bulky snacks. Finally, a mesh style front pocket has been substantially increased in size for 2024 and quickly swallows the largest items like rain gear, tents, and cook sets.

Collectively, the Kakwa’s pockets are carefully considered so you can hike with maximum efficiency.

BackpackingLight

Most Comfortable

"The Kakwa is one of the most versatile and comfortable packs I've ever used for loads exceeding 35 lbs....this pack has my favorite carry feel".

Section Hiker

10 Best Ultralight Backpacks

"The low weight is impressive for a framed pack....and it provides excellent weight transfer to the hips. The pocketing is fantastic for accessing what you need during the day without stopping."

The Trek

I Could Not Be Happier

"I’ve become a huge fan. It has smart places to put all the stuff, and carries all that stuff comfortably. I could not be happier to have it for the remaining 2,000 miles of the Eastern Continental Trail this winter."

Adventure Alan

Incredibly Well Designed

"The Kakwa has a famously excellent load carry. The whole setup is just so dang comfortable and user-friendly. It is in contention for best ultralight backpack on the market."

MATERIALS & QUALITY

In our backyard in the Canadian Rockies we often spend more time off trail than on, so durability in materials and construction is a top priority. With the Kakwa 55 we are using Ultra 200X and UltraGrid fabrics from Challenge Outdoor, where the face fabric is partly (UltraGrid) or dominantly (Ultra 200X) woven UHMWPE fibers which are several times stronger and more abrasion resistant than traditional nylon pack fabrics. The Ultra 200X material is laminated with an eco-friendly adhesive to a film to create a waterproof fabric, while UltraGrid uses a PU coating for waterproofing.

Simply using a tough fabric is not enough if the pack has weak points in the stitching or supporting materials. That's why the Kakwa 55 is fully double stitched with heavyweight thread by the same factory that builds packs for Arcteryx, and uses stronger folded seams. We’ve also used the same tough fabrics for the hipbelt pockets and side pockets so these exposed areas also have maximum durability. The front pocket is generally less exposed to the brush, but still we’ve sourced a durable knit mesh for this pocket that is much tougher than typical lycra mesh.

Ultra Fabrics

The Ultra 200X fabric option is dominantly woven UHMWPE fibers (more commonly known by the brand name Dyneema®) which is several times stronger and more abrasion resistant than traditional nylon pack fabrics. This material is laminated to a film backing to make the material waterproof.

The Kakwa 55 is also available in a more affordable UltraGrid version which uses a 200D nylon fabric interlaced with a UHMWPE ripstop. While not as tough as Ultra 200X, it is still quite a tough fabric.

Hollow Aluminum U Frame

The hollow aluminum inverted U frame provides vertical and horizontal structure at less weight than frame stay systems for more effective load transfer and comfort at loads up to 45 lbs / 20 kg.

Dual Strap Reverse Pull Hipbelt

This hipbelt design cups your hips, and makes tightening the belt much easier with 2:1 tightening leverage and an ergonomic direction of pull.

Shoulder Strap Pockets

These pockets provide an ideal place for your phone, bear spray, sunglasses, small water bottles and more. We attach them permanently for a more solid and user friendly connection.

Quick Pocket

The Kakwa's unique Quick Pocket is easily opened while on the move and provides quick access to larger items like hats, mitts, oversized phones, maps, and snacks.

Specifications

SPECIFICATIONS

WEIGHT

Complete Pack (oz)

Ultra 200X: 28.5 oz (S), 29.8 oz (M), 30.6 oz (L)

UltraGrid: 28.9 oz (S), 30.3 oz (M), 31.2 oz (L)

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Complete Pack (g)

Ultra 200X: 810g (S), 845g (M), 870g (L)

UltraGrid: 820g (S), 860g (M), 885g (L)

-

Removable items

Frame (3oz / 90 g) and backpad (0.5oz / 15 g) are included but removable.

MATERIALS

Main Fabric

Ultra 200X or UltraGrid

Features

FEATURES

Ultra Fabrics

The Kakwa is available in two fabrics: Ultra 200X and UltraGrid.

Ultra 200X is dominantly woven UHMWPE fibers (known by the brand name Dyneema®) which is several times stronger and more abrasion resistant than traditional nylon pack fabrics. This material is laminated to a film backing to make the material waterproof. This pack uses the new 'X' version which adds a tougher inner film.

UltraGrid is a nylon based pack fabric that is not as tough as it's Ultra 200X sibling, but still is a very durable pack fabric with a ripstop grid of UHMWPE fibers and a waterproof PU coating. It offers a smoother feel, tighter weave, and more affordable price.

Hollow Aluminum Frame

The inverted U frame provides both vertical and horizontal structure while the hollow aluminum tubing makes it lighter than flat frame stays.

Load Lifters

Load lifters are often omitted on lightweight packs but are a key component of the Kakwa's exceptional load carrying ability.

Compare

COMPARE

The Kakwa 55 provides best-in-class load carrying, usability, and durability for a sub 2 lbs pack. To illustrate, the table below compares the Kakwa 55 to what is typically seen in this niche (50-60L packs under the 2 lbs mark with premium fabrics).

LOAD CARRYING

Kakwa 55

Main Competitors

Frame structure

Inverted U frame provides vertical and horizontal support

Flat bars provide only vertical support (prone to rounding into a cylinder)

Load lifters

Yes

Sometimes

FAQ

FAQ

Browse the FAQ to learn more or get in touch if you have further questions.

Contact Support

Customer Reviews

Based on 422 reviews
89%
(377)
7%
(30)
3%
(11)
1%
(4)
0%
(0)
T
Thomas Kendall
The 55

Love my 55. Fits like a glove, packs everything including a bear lunchpail.

A
Anonymous
最高のザックです

軽い、そして腰の密着、それぞれのポケットの使いやすさ、デザイン、どれも素晴らしいです。
Kakwa 55 Packを買いましたが、軽い登山からテント泊まですべてこのザックを持ち歩いています。

これからも最高の製品を期待しています。

L
Lauren Dustin
Don’t know yet!

It seems great but I cannot use it until spring?

C
Charles Wright

Kakwa 55

R
Robin Green
Lightweight, comfortable, you barely feel the weight of what you're carrying

I haven't done a real hike with my Kakwa 55 yet, but I've fully loaded it with my base load + a week's food and been hiking around town to test it. It's very comfortable and the weight is evenly distributed. I really like how lightweight the pack itself is. I did a 6km hike yesterday with 34 lbs of load and felt pretty comfortable the whole time.
Some things I think could be improved:
- A few more little loops on the pack so you can add strings to strap stuff to the outside of the pack. I needed to strap a dry bag to the outside and spent a fair bit of time finding places to add my tie-downs. I was able to find something but it wasn't the ideal spots. having 1-2 more loops on each side would add very little weight but make the pack more versatile.
- The water bottle holders on the shoulder straps are too high up. I find a Smart water bottle, which is rather tall, is almost in my face. Even a regular biking bottle partially obstructs my lower vision. It would be nice if the bottle holders were either further down, or there was a way to move them down.
- The chest strap between the shoulder straps could be wider. For part of my hike I had it fairly tight - it's nice to be able to alternate where your body is bearing weight - shoulders, chest, hips. I found that because the strap is so narrow - only about 2cm - it exerted more pressure than I would like. While I know all the straps are quite narrow to save on weight, this one felt like an extra 2 CM would not add much weight and might make it more comfortable
- The clips (chest, hips, and the straps for closing the top and holding it down - are quite lightweight. They work fine but I do wonder how long they will last. It might be good to include a couple of extra clips in a repair kit that comes with the pack. Or maybe they are fine - won't know until a few weeks on trail, but it would be a bummer to have one break partway through a thru hike and have no way to fix it
- The pack is tall and narrow. It took me quite a few tries to figure out how to arrange my gear so that everything fits. This is a tradeoff between light weight and versatility. Once I'm on trail I may have to change the approach so that the stuff on top is the stuff I need most (e.g. sleep system so I can quickly set up camp in rain). An ideal pack would weigh what the Kakwa does and let you get at the contents from several directions (e.g. a zipper to get directly to the bottom half) but I realize you can't optimize for both versatility and weight.
Overall I'm really happy with the pack. Surprising how comfortable it is - comparable to much heavier packs. I bought a pack from MEC that was a bit bigger than the Kakwa, but weight around 2500 grams. Took that back pretty quick. This one's a keeper.

Glad the pack is mostly working well. Here are some replies on your notes:
1) We have been steadily adding more loops to the Kakwa. I think we are up to about 10 but yes having more does always seem better so maybe we'll keep adding.
2) The shoulder strap pocket height depends on the pack fit. If someone has large shoulders or is tall for the pack size then they will be higher, and vice versa. We try to get them about right but it is higher on some and lower on others. A size up would help for this if the pack is a bit small. But also the main purpose of these is items like a phone, bear spray and other smaller items. A water bottle can work but usually 500ml is about the max. A tall 1L smartwater bottle may fit, but is quite tall and yes could be hitting your face.
3) Thanks for the feedback on the sternum strap. We do have spares on our site, so you could use two.
4) We are having good results with the buckles but we do also have spares on our site.

Glad you're largely liking the pack.
- Dan Durston