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Gear up for your hut trips and mild weather camping with the MontBell #1 Down Bag.

Sleep like a lamb on your next yurt trip or backpacking trip in the mountains when you pack the lightweight MontBell U.L. Super Spiral Hugger #1 Down Sleeping Bag in your backpack. The 800-fill power goose down twists around you like a candy wrapper thanks to the Super Spiral Stretch System, so you can rest for the best untouched backcountry lines of your life.

  • Super Spiral Stretch System’s biased seams and elastic threads move with you throughout the night, keeping the bag close to your body to minimize open space and drafty air
  • Polkatex DWR finish holds up to 100 washes and keeps snow and ice from interrupting your alpine slumber
  • Double draft tube, neck baffle, and tunnel hood seal you up in a warm cocoon when the weather lays down the hammer
  • Bag zips to another bag to help conserve body heat in an emergency
  • Auto-lock full zipper won’t unzip as you toss and turn overnight
  • Available for shipping only to US and Canadian addresses

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MontBell U.L. Super Spiral Hugger #1 Down Sleeping Bag: 15 Degree

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Here's what others have to say...

5 5

Snug Warmth

  • Familiarity: I've used it several times

Truly a great bag, snug fit but good stretch. But I am a large frame at 6'5" 300. But one of the better mummy bags I've found.

Unanswered Question

Is it the foot adjuster?

In the old model...

Is it the foot adjuster?

In the old model UL Super Stretch Bag, the foot adjuster exist.

"Foot Adjuster"
MontBell bags feature a unique foot adjustment system. A drawstring has been added to the last baffle, allowing the user increased adjustability. For shorter users, the last baffle can be simply closed off completely, reducing the amount of empty space to heat.

Is it the foot adjuster?

Is it the foot adjuster?

Responded on

Kim, the bag stretches by design but I do not believe it has the adjustment drawstring. Someone please correct me if I am mistaken.

Montbell bags?? Anybody- I am doing the...

Montbell bags?? Anybody- I am doing the JMT last week July into August. Looking into the Montbell line .I know the variables weather , pad , tent, weather(can't change that)etc.. lite bags 800 fill for weight, Super spiral hugger #1 or #3 any comments. Any other larger lite bags for recommedtion. I would prefer to spend my money on USA made.

Best Answer Responded on

Take a look at Western Mountaineering bags. Their Apache MF bag is a 15º bag that should serve you well. It weighs 1 oz less than the Montbell #1 in a regular size and uses Pertex Microlite which will keep your down dry in all but a complete deluge.

The Montbells are great bags, too. But, if you really want a made in the US bag, I think the Apache will be perfect for you.

5 5

Review of Montbell UL Super Spiral Hugger #1

Absolutely the most comfortable sleeping bag I have ever owned. I love it compressibility and the warmth it provides. The over-all weight of the bag is also excellent and the draft collar is really great on extra cold / windy nights.

4 5

Light and Toasty

OK. I wanted a very warm and very light bag, that stretched a bit, was water resistant (water proof is not really possible without a lot of sweating I guess). Got it, no question. Just took this puppy out for a cold night and was totally toasty warm. I took along some extra fleece just in case but did not need it. It was so light and thin that I was afraid it would not live up to its billing. It did. I look forward to years of warm sleeping regardless of the weather. That price though . . . whew. But light and warm. I bit that bullet but wished it was $100 cheaper.

5 5

Snug as a Bug in a Rug in Campsite #9

So my inaugural use of the sleeping bag in question, was on a two-day trek down the Virgin River Narrows in Zion National Park. The river was ANGRY that day I tells you. Mostly because the flow rate was so high because it had rained for many days prior. Mostly. To make a long story short, we arrived at our backcountry campsite much later than anticipated because of slow-going in the river crossings. I was cold, wet, and had some sort of rash from taking a dump in the bushes! Anyway, to crawl into the MontBell Ultra-Lite Super Spiral Hugger #1 Down Sleeping Bag (Long Edish) was like being back in mother's womb. I felt warm, encumbered, safe, and all with freedom to move about inside. It wasn't terribly cold that evening, but the bag regulated the warmth pockets so well that I didn't need to exit it for anything that night, save nature's call. I slept better in the backcountry that night than I have in years, and I accredit it all to the proper gear I brought. Buy this phenomenal sleeping bag my friends; you shan't be disappointed.

5 5


In my view Montbell has the most innovative bag design out there. The stretch in these bags is great. I have a large athletic build and like to toss at night- this bag gives plenty of room while eliminating cold spots. I'm 6'1" and got a long- I was glad I did so. I've used it on some very wet nights in Iceland and the polkatex material did a bang up job of keeping the down and my self dry. My only complaint is the hook and loop closure on the draft collar, its hasn't been much of an issue really but there is a better solution out there I believe. It packs great in a Sea to Summit eVent bag. The tech specs speak for themselves.

5 5


This bag is amazing, no ifs, ands, or buts about it. It's incredibly lightweight, and very compact. It packs half the size of my old synthetic North Face "Cat's Meow" bag. And this bag is crazy warm with a awesome fit. The stretch feature is great because it allows movement without extra fabric or air space in the bag which would cause empty cold spots. I would definitely recommend this bag to anyone and everyone. In fact, I'm pretty sure my brother is going to buy one now that he's seen mine.

Looking at this bag and the Rab Neutrino...

Looking at this bag and the Rab Neutrino 600. Any opinions on which way to go? They both look pretty similar in terms of fill, price, etc. I'll be using primarily with an OR Alpine bivy and some tent camping for backpacking, some mountaineering/ snow camping. Other suggestions appreciated. Hoping to get a quality piece of gear that will last a long time.

Best Answer Responded on

Hey Grayson-

No opinion on either of these two bags, but a very strong opinion that you should be looking at Western Mountaineering.

Specifically, the Versalite, Alpinlite, or the Badger MF. For the money, why not buy the best?

Responded on

Thanks Phil, very helpful. I guess I just need to figure out which WM bag suits my needs best.

Responded on

I definitely agree with Phil. I think next year I'm going to migrate to WM based off of all the positive feedback they have for quality.

Re: Super Spiral--Does the zipper zip full...

Re: Super Spiral--Does the zipper zip full length or only part way?

Responded on

The zipper runs the full length of the bag, ending about shin height at the beginning of the the footbox.

Re: Super Spiral --Why are there two...

Re: Super Spiral --Why are there two shoulder circumference numbers given? Do these numbers represent circumference at the knee and at the shoulder?

Responded on

Montbell uses a type of fabric that stretches, and allows more movement while you relax or sleep with the bag zipped up. Using the long bag as an example, you would have a relaxed shoulder circumference of 57" and a streched soulder circumference of 81".

1 5


I had read all the reviews for this bag and thought this was the bag for me. I ordered it and was stoked to try it out until I received it. You can see through the baffles! Almost like they forgot some of the down filling. 800 fill, I doubt it! Poor construction and materials. Sent it back same day and got a Western which is awesome! Too bad they can't get together and build the perfect bag.

When i take the bag out on a trip-- is it...

When i take the bag out on a trip-- is it ok to use a compression sack to scrunch the bag down or does that hurt the bag? I got one of the sea to summit compression sacks-- so just wanted to make sure they cant "hurt" the bag by compressing it down..

Best Answer Responded on

Some people don't like to use compression sacks for their down bags because it does break down the feathers faster and decrease the life of the bag in the long-term, but it's not going to "hurt" it in the short-term. We're talking over the course of many seasons and years. But be sure not to leave it that way after your outings, and also give it some extra time from when you make camp to when you go to bed so it can get some air and loft back up.

I got one of these bags(ul ssh down) and...

I got one of these bags(ul ssh down) and i cant wait to try it out.. My question is-- what is the best way to store the bag between uses.. I got the bag from you guys and it came in a very large "sack" style storage bag.. Do i just leave it in there or should i take it out and store it another way?

Best Answer Responded on

Yes, store it in the big canvas sack in a dry area that gets decent ventilation. Mine is up in the top shelf of my closet when I'm not using it.

5 5

the world's finest sleeping bag.

this is the finest purchase i've made in my life since that ticket to go see built to spill on their first tour. i've owned four bags and have grown to expect to hate life once its time to climb into bed. i am chronically cold - i wear wool daily - and this beast let me survive a 30 degree night in comfort. perfect in every way.

How well does the Polkatex repel water,...

How well does the Polkatex repel water, moisture, etc.? Is it similar to EQ from Marmot?

5 5

AWESOME sleeping BAG!

This bag is AWESOME! I bought it, and the first thing I noticed about it was how light it truly was! Amazing! Then I got inside of it and it was toasty and comfy. I could even sit cross-legged in it! If you spend the money on this bag, it will definitely return the favor for many years to come!

5 5

Love it

I was reluctant to spend this much on a bag. But, after having used it on a recent backpacking trip, I have to say I love it. The low weight and small packed size allowed me to fit a few things in my bag that I might have foregone otherwise. And, this particular trip turned into a very cold overnight. Yet, I stayed warm and toasty.

I didn't think I would like the mummy shape, but I had plenty of room. And the bag does stretch quite a bit so I could sit up and cross my legs and even get dressed without having to venture out of the bag into the cold morning air.

The only negatives might be that this bag is very warm...probably not good for warmer nights. Also, the zipper tends to get stuck in the draft tube. You have to be careful. So, this wouldn't be a good bag for someone that doesn't take good care of their equipment.

The stuff sack that comes with the bag is long and thin, sort of the size of a full-size loaf of sliced bread. And, it's make of the same material as the bag so it may not be all that waterproof. Instead I used a compression dry sack and got the bag down to the size of a large canteloupe. Finding a compression sack the right size can be a challenge.

5 5

Just the bear facts...

Unfortunately, this is the second Hugger I've bought in the last 6 months. The first is now the prized possession of a black bear in the Smokies who shredded my tarp in the middle of the night and when I scrambled to safety, relieved me of my Hugger while I was helplessly watching from a safe distance. He got himself an excellent bag which is impressively comfortable and lightweight. I got to buy another Hugger but do so without hesitation and with nothing but admiration for MontBell's product.

Please take my purchase of a second Hugger as the strongest endorsement I can give for this bag!

Responded on

Just out of curiosity, what do you think attracted the bear to your bag?

Responded on

me three, sou smell extra yummy? leave some of that i the bag maybe?