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Meticulous craftsmanship and thoughtful design make all the difference.

Sporting a full draft collar, premium 850-fill goose down, and highly breathable shell fabric, the astonishingly light Western Mountaineering Versalite 10-Degree Down Bag is ideal for three-season trekking, kayaking, and bike-touring. Celery-eating, high-alpine climbers looking to shed a few pounds will appreciate its unmatched warmth-to-weight ratio, and mountaineers looking to push the limits of their shoulder-season gear can glean a bit more insulation from layers thanks to a wider shoulder circumference.

  • Highly breathable, water-resistant Pertex shell protects the down insulation from frost, condensation, and spindrift
  • Ultra-premium 850-fill down insulation retains your body’s warmth and provides a higher warmth-to-weight ratio than any synthetic-fill insulation
  • Interlocking draft tubes and a down-filled collar prevent energy-sucking drafts from zapping your slumber
  • Wider shoulder girth allows for extra layering in brutally cold environments
  • Western Mountaineering bags are made in the USA

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Western Mountaineering Versalite Sleeping Bag: 10 Degree Down

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Here's what others have to say...

Does this bag have the green material on bottom also or black on bottom?

Responded on

Hey there, Leta here from Western Mountaineering. The Versalite has a green bottom on the bag. Hope this was helpful!

5 5

It doesn't get any better

  • Familiarity: I've used it several times

Fantastic bag. The continuous baffles allow you to shift down around (if it's cold, move it all on top of the bag. If it's a warm night, shift it underneath you for extra padding, for less insulation). Super light, super small, and extremely well built. Fantastic bag.

I own this bag and planing a winter backcountry trip. Temps are going to be around -5F and I wonder if Reactor liner of claimed 20F added comfort will be suffice. Should I get some VBL? Thank you!

Best Answer Responded on

At those temps, with this bag, I'd take three approaches, and in neither case would I rely on a bag liner:

1) I'd plan to wear some insulating clothing to bed... more than a baselayer.

2) I'd pay particular attention to what's under me. I recommend heavy mil plastic for vapor barrier, then a layer of reflectex (but it at home depot), and then an insulating mattress of some type (either close cell foam or something like a Thermarest X-therm).

3) If I could, I'd avoid sleeping in a tent and instead I'd build a debris hut or quinzee insulated with snow. You'll get about 15-25 degrees of warmth out of a proper snow shelter.

As for VBLs I have no experience with them, but I think there's a reason why they are so rare. If they work, and you're warm, all's well. If they don't work, you're wet... and that can lead to a very bad place very quickly.

One "backup plan" that I often keep in mind is a couple mylar blankets. Very light insurance policy. If I experience temps way colder than I planned for, I will cover my sleeping bag with a mylar blanket; this means that my bag will be damp by the morning though, so I do it only when I am confident I will have a chance to dry out (or bug out).

Responded on

You would need to get an appropriately rated bag. Those liners are a sham. VBL sounds like good idea on paper, can be quite miserable and stinky in real life application. An extra synthetic overbag that could supplement this bag would be the cheapest solution. You would need at the very least a 15 degree synthetic overbag combined with this bag to accomplish a -5 degree rating. Also this set-top would greatly help with freezing body moisture collecting in your down bag of you are out for a couple of days and have no way to dry bag during daytime.

-5 degree isn't anything to mess with. If you rely on you're clothes, and they get saturated with sweat or wet with snow, your screwed. Plus to be blunt, your normal hiking clothes isn't going to make up twenty degrees. If you have a puffy down jacket, this can help alot too, I would think one with at least 8+ ounces of down would be suffice, but an not sure.

You will also need a sleeping pad R rating of 7 or 8. Don't underestimate how much heat is lost underneath you. An xtherm plus a blue pad underneath will be good, downmat would be better but heavier.

Responded on

Be careful about closely parsing temperature ratings. I have had this bag for three years. It is a high quality item, it packs small and it lofts very high. I sleep cold and I start to get uncomfortable in this bag at 25 degrees even when I wear my puffy and long underwear. For me, and this is just me, I would wear my down pants and heavier down jacket not my puffy, and make sure the pad R-value was high, to take this bag into -5 degrees. Main point, even though the consensus is the Western Mountaineering gives "honest" ratings, those ratings are only a helpful baseline, but you still need to know how warm and cold you sleep. And when you look at less reliable manufacturers who make similar claims of warmth with less fill weight and inferior down, it gets even more risky trusting what you read.

5 5

Great quality.

  • Familiarity: I've used it once or twice and have initial impressions

A down bag with a real temp rating. Light, comfortable, and great fit.

4 5

Whole JMT with this awesome bag

  • Familiarity: I've put it through the wringer

the good - silly light, so comfy, fitted 5'6'' size for short people like me.

the bad - being on the warm side for a 10deg, this bag can be too warm for some in the summer months. It's also not quite warm enough for a full-on winter bag.

the ugly - there is no ugly with the Versalite

Whole JMT with this awesome bag
5 5

Great for Women

  • Familiarity: I've used it once or twice and have initial impressions

This bag works great for women and keeps me nice and warm. It's got plenty of room in the hip and knee area so I can wiggle around. It tightens down nicely around my head and shoulders when it gets cold blocking all air from getting in. I'm 5'4" and got the short size.

5 5

Good enough for Kili!

  • Familiarity: I've used it several times

If it's good enough for Kili, it's good enough for me! It was 7 degrees at the summit, but warm and toasty the night before. Also very comfortable. We used liners that may have added a few degrees, but my old sleeping bag is definitely going to Goodwill now!

Hello from Spain. After being focused on...

Hello from Spain. After being focused on a couple of european brands, I have learned bout WM bags. Looks like this is a serious option as far as Weight to warmth ratio is concerned and also in terms of quality and I am really thinking of buying it on my next trip to the US. The only concern being the outer shell, as I live in an island and high moisture is always present at night, which shows on the sleeping bag in the morning... Any comments about it? Thanks.

Responded on

Hey Jaime,
This bag uses a Pertex shell material, which is highly water resistant even though there is no membrane on the shell material. Pertex essentially uses a thinner synthetic fiber and are able to get a tighter weave which allows the bag to repel moisture while staying breathable. I've seen the WM sales rep pour a glass of water onto their bags and try to rub it into the shell. When turned over the water just ran off the side of the bag.

5 5

Amazing and truly versatile

  • Gender: Male
  • Familiarity: I've put it through the wringer

What's not to like about this bag? Light, versatile, warm, and packs small! The Pertex Quantum fabric used as the face fabric allows the reduction of weight and packed volume in this 2 pound dreambag. The zipper never snags on me!

I actually wish Western Mountaineering would make the same spec'ed bag in Microfiber fabric. It would probably only weigh one or two ounces more, but the amazing water resistant properties of the MF fabric are worth the upgrade over Pertex Quantum. You won't regret this purchase if you're looking for a lifetime investment in a light 3-season bag.

5 5

Western Mountaineering does it again!!!

  • Familiarity: I've used it several times

This is possibly the best sleeping bag ever. I have used it many many times in weather ranging from 30 degrees to 5 degrees and have never been cold and I am a very cold sleeper. In addition to the warmth the bag is also quite light so I have never had weight issues with it. It also fits nice and small into a stuff sack so it doesn't take up a lot of room

WM is also a fantastic company. My Fiance ripped his sleeping bag and they fixed it so well you can hardly tell where the rip was. Sometimes we wonder if they just sent him a new bag.

5 5

In Love With This Bag

  • Familiarity: I've used it once or twice and have initial impressions

I've always had issues staying warm while camping, even on early summer trips. I have a 30 degree synthetic bag that did not keep me warm in June OR October. So, when I decided to go backpacking in November in the Red River Gorge I knew I needed a better bag. This one is perfect. It fits in the bottom of my pack and kept me warm and toasty all night long. I highly recommend it.

I'm 5'6 155 lbs. What size should I get?...

I'm 5'6 155 lbs. What size should I get? thanks!

Responded on

I would go with the 6' length- the 5'6" would work but won't give you as much room to move around. The bit of extra length on the 6' bag will let you pull it all the way up around your face.

5 5

Greatest Bag Ever

  • Familiarity: I've used it several times

I took this bag on a 4 day trip in November with night temps into the 30's. It fit perfectly into the bottom of my backpack and kept me all warm and cozy at night (I only wore shorts/tshirt/no socks to bed). I am extremely happy with my purchase.

I'm 6ft 1" - would I best with a long?

I'm 6ft 1" - would I best with a long?

Best Answer Responded on

The Regular and the long in this model are the same length, although the width and shoulder width are an inch or so larger in the long. I own a Western Mountaineering bag and I got the long because i enjoy a little breathing room in my bags. I'm 6'2 by the way.

Responded on

Ryan, that is incorrect, the regular is 6' and the long is 6'6", so they are not the same length. has the specs listed wrong. (I'll notify them.)

To the OP, I would suggest going with the long. Being a little over 6' means you will be stretching the bag out too much, and will compress some of the insulation around the head and feet, which is not ideal. The long version is what you need.

Responded on

voting for long with chad. you don't want to finish a long day of backpacking and not be able to stretch your legs. get the long and wear socks if your feet get chilly.

5 5

Exceptional bag

  • Familiarity: I've put it through the wringer

Long term review. I purchased my Versalite in 2012 and have taken it on two extended trips in the Bucks Lake Wilderness and the Carsen-Iceberg Wderness areas in the Sierra as well as some other shorter excursions. Beyond the meticulous construction and high-grade materials already expounded upon by others, this bag just flat impresses with its warmth, loft and lightness. The Versalite was comfortable, dependable and rapidly became thoughtless to me as a user. I worried about other aspects of my trip, my companions, equipment, etc. What equipment manufacturers can boast that? We're so good... we fade into the background of "got that". 'nuff said.

5 5

Best bag, period.

  • Familiarity: I've used it several times

The warmth to weight is amazing! Western Mountaineering's quality is unmatched by any other bag manufacturer. I have used this bag on several occasions and it has performed above and beyond my expectations every time. I have the 6' bag (I am 5'11") and it was like it was made for me. The zipper never snags and the draft collar keeps all of my heat in the bag where it should be. The temp rating is the most conservative I have seen on any bag. Really a fantastic bag and worth the price!

5 5

Love it!

Had another brand of sleeping bag. It was a 30 degree bag, and after an extremely miserable night at 40 degrees, I decided it was time for a major upgrade. Enter the Versalite. Actually two. One for me, and one for him. We're both cold sleepers, and the Versalite's have been lifesavers. Been using them for 3 years now, about 40 nights a year, and they still look and perform like new. If we ever need new bags, Western Mountaineering will be our first choice. I am 5'4" and he is 5'8". We both went with the regular length bags. I'm sure I could have gone with the shorter bag, but I just put my jacket down at the foot to take up the extra space, and then the jacket is nice and warm in the morning when I put it on.

Hello -- I am a 5ft 5in woman. Should I...

Hello -- I am a 5ft 5in woman. Should I get the 5ft 6in bag or go up to the 6ft? I know it's important to have space in your bag especially in colder temperatures. I will be using the bag in mostly colder temps, around 20 and below. Any advice? Thanks!

Best Answer Responded on

You'll be fine with the 5'6" bag. They are sized to allow a bit of extra room, so you should have all the space you need at 5'5".

Hi. I am writing from Japan. I understand...

Hi. I am writing from Japan. I understand you have some ristriction to ship Western Mountaineering products to Japan in your policy. Actually I plan to visit San Francisco, CA during March 23 and 27. Is it possible to ship your marchandise to the Hotel (I wll stay at Hotel NIKKO San Franisco), if I settle my payment? I also want to know the size which fits me best. I am 5ft and 8 in. tall. I appreciate it if you respond my question ASAP. Thank you all.

Best Answer Responded on


For your height, you'll want the Regular size.

If BC is unable to ship the bag to your hotel, I live about 60 miles north of SF. I'm not certain if your itinerary allows for the time to pick it up it or not, but I would be happy to allow you to have your sleeping bag delivered to my brother's house in Sausalito, just on the other side of the Golden Gate Bridge from SF. If this becomes necessary, please don't hesitate to contact me with your email address via a reply to my answer on this page.

5 5

Love at First Night

  • Gender: Female

The most luxurious sleep of any night spent ever in my life, indoors or out.