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The Ultra Kompressor gets your goods to the mountain top.

The Marmot Ultra Kompressor Backpack steps it up a notch in the world of ultralight backpacks. More comfortable compression-molded shoulder straps support additional weight in the bag and won't irritate your shoulders after long days on the trail.
  • Sternum strap and webbing waist-belt keep the pack from shifting on long climbs
  • Light reflective clipping points to attach a helmet or small sack
  • Three mesh stash pockets hold water bottles, energy gels, or a lightweight rain coat
  • Foam back panel provides a comfortable fit and slides out to be used as a seat or to be left behind if you are going super lightweight
  • Three compression straps shrink your gear down to a manageable size
  • Ice axe loops for technical summit days

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Review Summary
4 4
4 3
0 2
1 1

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Marmot Ultra Kompressor Backpack - 1250cu in

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Here's what others have to say...

I may be taking my laptop sometimes, would...

Posted on

I may be taking my laptop sometimes, would it fit in it?

Best Answer Responded on

That depends a lot on your laptop size. A netbook (13" screen or less) would fit no problem. If you get much bigger than that, you'll greatly reduce the amount of other things you can put in the pack.

4 5

Good lightweight pack

Nice and light and packs down well. I'm 6'1 and the pack may be a little too small for my torso but you can fiddle it a little to make it comfortable. Would've preferred if they'd included a bungee cord for use on the front of the pack (there are four small loops on the front of the pack for this purpose) but no biggie. Only other issue is the hydration bladder hook is a little strange. Will not clip onto any of my bladders, Hydrapak or Platypus. Minor issue once again. For the current discounted price, you can't beat it.

5 5

Great Pack!

  • Gender: Male
  • Familiarity: I've used it several times

This Marmot backpack is a great daypack for an adult and an excellent hiking/camping pack for kids. It has a lot of features and very functional. I bought one for the entire family and the five different colors makes them easy to distinguish. It is not meant to be a rugged/multi-day/weatherproof/etc. end-all primary pack. Add it as a secondary pack for commuter trips and day hikes.

4 5

Great day pack...

I have the citronelle / flint color and it's a great pack. Very lightweight day pack, great for day hikes or city walks (as most said already). Agreed also about the thin flimsy material, but I do understand why they used it (weight savings).

NOTES: Bladder & hose opening in the middle. Sleeve is enough for smaller bladders.

NOTES: There's no ventilation on the back panel like the Ospreys, but with a small pack like these, you rarely will notice the difference with or without.

1)TWO zippers for the top compartment. I never knew how useful it was until I got this pack.

2) Inside the lid is another storage compartment. Big plus for wallet/camera/papers/etc.

3) Middle mesh pocket is large enough to be useful to stash a jacket / rainfly / helmet ...

4) Very comfy padding and shape of the pack won't stop movement from arms. It's a "skinny" pack.

5) Two water bottle compartments VERY useful.

1) Durability - The little compartment inside the lid already has a rip and I've barely used it! What's up with that?

2) Packability - You CANNOT pack this (2012 version) into a little stuff sack or lid as other people mentioned. Flat, yes, but not into a stuff sack. Even removing the back panel, the padding in the back is fairly rigid that I feel like you might be damaging the padding if you folded it.

3) No compression strap on the bottom as with its bigger brother or other packs.

NEUTRAL ISSUES: NOT waterproof. The material is very thin. Stuff WILL get wet when it rains. Solved by having a rain cover, ... or better yet, a plastic draw string garbage bag ... or a $1 poncho.

All in all, it's a great pack and I'd buy it again for sixty bucks (sale), but I wont' jump as quick for seventy five.

Are the two side pockets large enough to...

Posted on

Are the two side pockets large enough to hold nalgene bottles?

Responded on

Definitely are, I use a 1lt nalgene with my Ultra kompressor all the time. And though the pockets' webbing looks a little bit flimsy at first sight, it is super tough. I've given it a lot of use and it's still in perfect condition.

4 5

Good for the average hiker and city walker

I like this pack a lot for many reasons, but I will be the first to tell you it is the last thing to you should take on a mountaineering expedition. Great for day hikes, city walking, I like the chest and waist belt on it as well as the pocket options and main storage compartment. I have overstuffed this thing many a time and it had held up really well. I have even used it on a bike tour when space is at a premium and I need a pack I could bring into town, stead of wearing my handlebar bag as a purse. The durability on it is good, but could be way better. I would be much happier if they would introduce a cordura version instead of this flimsy rip-stop crap.

Does this backpack have the capability to...

Posted on

Does this backpack have the capability to support a bladder and hose?

Responded on

Yes it is support a bladder and hose

Hi, I was just wondering if the owner of...

Posted on

Hi, I was just wondering if the owner of one of these packs could tell me if it can be compressed into it's own pocket. There are 2 contradicting answers on the reviews for this pack and I was just wanted to make sure

Responded on

Yes it does. I have one similar to this and mine packs into a 5x9 little stuff sack.

Responded on

It does not compress into it's own pocket. Maybe a past version of this model did, but the present one (the one in the pictures) does not. 100% positive about this.

2 5

Disappointed with the durability

I'm writing an update 4 months later to my first glowing recommendation. One of the side compression straps snapped on a day hike in the Cleveland National Forest and I've officially given up on this particular genre of backpack. I was out in a severe thunderstorm for several hours and even with a Sea-to-Summit rain cover, the Ultra's thin material managed to become completely soaked and drench everything in my bag, including my camera (which I saved). Obviously I'm not taking this on my next trip abroad. I returned the Ultra to Backcountry and bought an Osprey Stratos 24 to go with my Aether 85. So, while I originally gave this backpack five stars, I now have no choice but to give it 2 for a lack of durability. I'm sure Marmot or Backcountry would send me another one, no questions asked, but I don't want another one.

(Here's my original review, which has more detailed information:)
I was looking for a daypack that I can pack into a larger pack if necessary, yet can stand alone when I need it. First off, I've purchased other packs in this category and been disappointed by poor designs and flimsy build quality. Honestly, even the Kompressor and Kompressor Plus didn't catch my eye. My girlfriend bought this for me as a Xmas present and I'm glad she did. The pack actually feels like a backpack, with comfortable shoulder straps, and a sternum strap and a waist strap for added stability. It has 3 outer mesh pockets, 2 for water bottles, and another one I've used for sunglasses, a camera, etc...And with 1250 ci of storage space between the top pocket and main compartment, you can fit everything you need for walking around town or a day hike. However, the Ultra isn't packable into its own zipper pocket like the other Kompressors. You can definitely pack it down to a flat item taking up about as much room as a sweatshirt in your larger backpack.
I think it's important to know exactly why you're buying this pack. Yes, it actually fit my laptop, but the pack doesn't offer much protection, and can hardly fit anything else, especially in the mesh pockets, if you decide to cram the main compartment. This is an ultralight pack, plain and simple.

Marmot Ultra Kompressor

Posted on

Marmot Athlete, Jordan Campbell reviews Marmots Ultra Kompressor daypack by Marmot from Cradle Mountain in central Tasmania (Australia). Video by Jasmin Latona (AUS).

Pardon my ignorance, but what are the two...

Posted on

Pardon my ignorance, but what are the two adjustable loops near the top on the back for?

Responded on

They hold the shaft end of an ice axe.

Does this pack fold up into itself like...

Posted on

Does this pack fold up into itself like the Kompressor Plus does?

Responded on

Yes this can stuff into its own lid for compressed storage.

5 5


Got the back the day before my wife and I went camping with our 9 month old and two dogs. Fantastic! The pack worked great to carry in my clothes and as a day pack to carry water and my daughter's essentials. It was light enough that carrying it on my back and her on my front wasn't too much. I'm a fan!

5 5

My everyday

This is my everyday bag. It's perfect for any type of day trip. In the city, hiking, snowshoeing. It's incredibly lightweight and durable.

5 5

Great Little Bag

I purchased this bag after much deliberation, I have the 2010 model but the new ones seem to be the same as what I have. I was looking for something light and small but still have pockets for storage for shorter trips. I was pleasantly surprised to fit a ton of stuff in this bag. It was great for a day hike to the bay with the dog. It also worked well fitting a jacket and provisions for going to the A's game at the coliseum . I actually like the back panel, it adds support and doesn't feel like it is taking up additional space. I would recommend this to anyone looking for a solid day pack.

Great Little Bag
4 5

not bad

this pack is ultra lightweight, but after removing the back it still has a back panel. kind of weird having two back panels. anyway, this wasn't what i was looking for...that being said, it still seems like a good pack