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Forget fanciful names inspired by Himalayan peaks; the Montbell Men’s Extremely Light Down Jacket tells it like it is. At a wispy 5.7 ounces, this ultralight down layer provides high-loft warmth for demanding climbing, skiing, and backpacking applications. Stuffed with feather-light 900-fill goose down, the Extremely Light Jacket packs down to nearly nothing and fluffs up easily when a frigid gust hits the belay. A DWR-coated Ballistic Airlight shell brushes off snow and light drizzle, and the included stuff sack helps it disappear into your pack when you’re on the go.

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Love it

  • Familiarity:I've used it several times
  • Fit:True to size

I purchased this product recently for a backpacking trip to the north rim and camping Demott camp ground, Kaibab NF. Temperatures got down to 40° jacket served me well and I didn't miss the pockets. In its stuff sack it doubled as a comfy pillow. In colder temperatures I have stuffed it into the base of my sleeping back to keep my feet warm and on other times I have worne it to bed to help keep me warm in my sleeping bag. I would recommend it to a friend.

Like a fluffy little cloud

  • Familiarity:I've put it through the wringer
  • Fit:True to size

Really. This thing is warm and oh so light. I carried it with me on a 21 day backpacking trip and it quickly became a new favorite piece of insulation. Lots of good reviews here so I'll just add that the DWR was surprisingly good. Not that I expected it to be bad, but I figured I'd have to be more concerned about small amounts of precip and this wasn't the case. This is a great layer on its own and paired with a solid rainshell it creates a trusty system for very cold conditions. That being said, if you want a light insulated layer that that is bombproof on its own, check out the Rab Xenon X.

so warm!

  • Familiarity:I've put it through the wringer
  • Fit:True to size

Great light down jacket! Wish it was a bit longer, but it actually ends up working well by staying out of the way of the harness and tucked underneath outer shell for tough weather.

Trippin' The Light...Fantastic!

  • Familiarity:I've used it several times
  • Fit:True to size

OK, WHere Do I Start? 900 Fill Down...Like Almost The Best The Goose Has. 5.7 Ounces And Compresses Into A Stuff Sack The Size Of A...Well, A Goose Egg...Wow! And The Cactus Green Color Was Perfect For My St. Paddy's Day Hike. It Fits Perfectly Under My Rain Shell. Seriously, I've Been Drooling Over This Jacket For A Year, And Couldn't Be Happier With It. If You're Thinking Of Going Ultralight, This Jacket Is A Way To Save Ounces (I Saved 13.6 Ozs Over My Previous Down Jacket).

-Moondoggie AT2011

Close to perfect

  • Familiarity:I've used it several times
  • Fit:True to size

Extremely light weight, feels almost nothing on hand. I used it for both climbing and everyday work. Some cons that I would like to point out: 1) too short to cover my waist although the size I got was nice of the arm length. 2) No pocket but I can understand it is for weight saving. After all it should be used as strictly middle layer because the design, as well as the shell material.

Great jacket to have

  • Fit:Runs small

I only wear this jacket a couple times a year but I'm glad I have it in my quiver of jackets. More often I'll have the jacket with me in case I need it. I'll always have it in my ski or snowshoe pack just in case a friend or I will need it. I love how small it compacts and how light it is. There's always room for this to accompany me on my cold-weather outings. This jacket does run a little small on me. I'm 6'1" 175 lbs. athletic build and I have a medium. If I had a large it would be a little more comfortable but I probably wouldn't end up wearing it more. I'm just not a fan of down jackets because they're so noisy. But their weight to warmth ratio is amazing and I haven't found anyone who does it better than MontBell. Because I'm not looking for reasons to wear it, I'm giving it 4 stars.

Super jacket!

    I ordered this jacket for my husband. I have had one for a couple of years now. This jacket is extremely light, compact, and warm. Recently we were on Springer Mountain in 40-5o mph winds and the temperature was 23 degrees F. I had on a base layer, a lightweight fleece jacket by Columbia, and this jacket as my outer layer and I was toasty warm. This past week we were in New Mexico in conditions in the low 40s but low humidity. My husband had on a t-shirt and was chilly. He put on his new jacket and commented that he could feel it warming up immediately. We are ultralight backpackers and we are very happy with the minimal weight and space taken up in our packs. This jacket has no pockets, which is perfectly fine with me. If you want pockets, take a look at Montbell's other offerings, especially the U.L. down jacket. BTW, our experience with Backcountry .com was exceptional! Really fast service and a great guarantee!

    Don't know its there till you need it

    • Familiarity:I've put it through the wringer

    I've had this ex lite jacket in my pack for a while now. You've got the camp wok done, had your dinner, maybe have a little camp fire....time to share the day. I snuggle up in this jacket tht I couldn't even tell was in my pack all day and presto! the chill is gone, what a good finish to a perfect day.


      Extremely light, very warm for its actual bulk and feeling. Its like wearing a shirt, I don't have to take it off when I go inside but it keeps me from getting a chill when I go outside. Plenty warm for a mid layer under a shell on a 40 degree day, great add on inside a sleeping bag. Its very comfortable. If it gets all nasty from excessive use (you may not take it off except to wash it) just use a little nikwax in a washing machine and it comes out new again. For the lightness of the fabric its supprisingly tough, but it is a delicate garment. However I am hard on gear and this one holds its own.

      All around gem

        Let's see, this little beauty packs down to the size of my fist, is super light-weight and warm. It's also perfect for layering. I've used my MontBell for travel, hiking, snow sports, and just chilling, even though my wife doesn't really like how it looks, to sporty I guess. But I think it looks radical, and it's the coziest clothing item I own. I've taken this jacket to Iceland, New Zealand, Netherlands, Croatia, Switzerland and all over the western US. It sheds water, but isn't waterproof. All in all, this is the perfect layering jacket. Why buy a fleece when you could instead make the best purchase of your life and pick one of these lovelies up?

        Great jacket, but read caveats

          The jacket itself is unbelievably light, while offering an admirable level of warmth. Initially I was concerned with the strength of the 7-denier, not 15-denier as BC lists, but after inspection that fear has dissolved as long as care is taken. The jacket lofts up nicely once it is taken from the package, shaken out, and the fabric stiffness has worn off. It packs down to nearly nothing, and again weighs even less than you can comprehend.

          Now to the potential negatives, but not enough to warrant a downgrade in my opinion, is the fit. Torso length on the jacket falls right around the normal waistline for pants/shorts, if not just above, while the arms are slightly long and baggy. Keeping in mind this is meant as a mid-layer, and that it is down insulation, the short torso makes sense for wearing underneath outer layers, so as not to be exposed. Moreover the function is to heat the body's core, which it does well. Sleeve length is, again, slightly long and baggy, but not to the point of being cumbersome or incurring down compression reducing insulation.

          All in all it fits and wears comfortably while offering my expected level of insulation; neither the sleeve length or bagginess impeded wearing it beneath a shell. As long as care is taken with the fabric, i.e. not bushwhacking through underbrush without a shell, it should hold up respectably. It then is the perfect piece for its intended application.

          Ex Light & Nano Puff Vests

          Just a comparision between the two pieces, mostly for purposes of luster and size. Some folks say the Nano Puff is shiny, but it is clearly pretty low-key next to the Ex Light Vest in Gunmetal, even though it's a black Nano. Also for size. The Nano on the left is a size Medium; the Ex Light Vest on the right is a Large, and they are almost identical in size and fit.

          Ex Light & Nano Puff Vests

          Awesome Jacket but M a touch small for a 6'1, 170 lbs

            Bought it over Christmas. Solid piece. Very warm. Looks good. Light as hell. Short in the body, arm length (I'm a 34.5) is perfect. If it's just going to be worn as a mid-layer, no probs. I won't be wearing this halter-top out to the bars though.

            magnificent layer

              I love this thing. Best midlayer I've ever worn. Warm enough on it's own to wander around Telluride at night in February (you might need to stop into the Last Dollar for a warm up.. but hey.. it's a down sweater!), and just perfect under a shell. Dries quickly, and holds it's loft well. The fabric is delicate, but then again, that's why it is so light and packs up so small.... 100 percent recommended. Fits fairly trim (I am 5'-10", 185 lbs and the medium is just barely big enough)

              Does anyone know if the gunmetal is less...

              Does anyone know if the gunmetal is less shiny than the other two colors shown above? It appears to be in the pictures but wasn't sure if that was just lighting, Thanks.

              Unfortunately, the 15D fabric is going to be shiny, no matter the color. MontBell uses a process called calendering that flattens the individual fibers. It makes the fabric more downproof, but also has the side effect of making you look like you're stepping out of a fetish ball. Form over function, right?

              Best Answer

              The gunmetal is a cool color (I have it in the Ex Light Vest), but make no mistake, it looks exactly like a Hefty trash bag. I posted a couple photos for you and anyone else who might be interested.

              As previously stated, the calendered fabric will be shiny in the Ex Light and UL Down lines (at about the 30-denier Ballistic Nylon shell, or Alpine Light stage, the shine tones down considerably), but certain colors look better shiny.

              And just info, Dave Marcus and the BC sidebar are incorrect, the Ex Light has a 7-denier Ballistic Airlight calendered nylon, not a 15-denier, which is the shell fabric used in the UL Down line.

              And if I bought one of these, I would have to go for the Sunset Orange or Sax...

              I have The North Face Diez 900. But it...

              I have The North Face Diez 900. But it is a bit too puffy to wear over a rain jacket. Is Montbell less puffy? And how about warmth vs the Diez? I dont want to get too similar of a jacket.

              Best Answer

              Just to confirm, you wear it OVER your rain jacket?

              The Ex Light is less bulky and not as warm as the Diez. They aren't as dissimilar as that makes them sound. The MontBell is about as light as down jackets get, but the Diez isn't much heavier. I would suggest complimenting the MontBell with something heavier than the Diez.

              People asked about all sorts of different...

              People asked about all sorts of different jackets that are in different categories, but between the Patagonia Down Shirt and this, which is warmer? And how do they compare in general aside from the obvious weight difference?

              Well, the weight difference is 0.2 oz in favor of the MontBell.

              The MontBell has 1.8 oz of 900 fill down inside 7D fabric.

              The Patagonia has 1.99 oz 800 fill down inside 10D fabric.

              Despite a slightly higher amount of down in the Patagonia, there should be more loft and more warmth in the Montbell because of the larger baffles and higher fill power.

              Would this jacket keep me warm in like -15...

              Would this jacket keep me warm in like -15 New York city winters?

              No way. This has less than 2oz of 900 fill. If you have a windproof shell, that's enough to get you down to 20F. Maybe. Try a heavier jacket like the Mostbell frost or Outdoor research megaplume, Mountain Hardware sub-zero. If you run warm, perhaps the Marmot Ama Dablam would work. However, I suggest you get a jacket that works for 90% of the weather you encounter, not spend over 200 for those 5 days when it's that cold (not from NY so I don't know how cold it gets). The above jackets will make you sweat in anything above 20deg and if you do anything active. Get the Marmot AD, wear a shell over it, a light fleece and a wool long sleeve under if it gets that cold.... Or stay home. Hope that helps some.

              Unanswered Question

              I am 5'5" 128lbs. Will the jacket and its...

              I am 5'5" 128lbs. Will the jacket and its sleeves for a Men's Small be too long/baggy? I tried on a Thermawrap and it was a little baggy and more importantly, the sleeves were 1.5" too long.
              Thanks for your help!

              I've read about concerns/issues with...

              I've read about concerns/issues with durability with this jacket. I'm looking to lighten my load from fleece midlayers and it doesn't get any lighter than this.

              I would like to use it as a summer alpine/desert winter insulating layer for in camp and a light bring along to wear at the top while peak bagging, and possibly as added warmth under a soft shell to/from work on colder days. So given those requirements, will this ultralight hold up, or should I move up to the slightly heavier MontBell jackets?

              Ex Light vs Thermawrap, which one is...

              Ex Light vs Thermawrap, which one is warmer?

              I am 6' 230 lb. Chest is 49". XL is the...

              I am 6' 230 lb. Chest is 49". XL is the largest size; will this fit as a layered piece over a thin fleece and under a shell? Anybody know?

              Best Answer

              I am going to say no. For me, all the mont-bell stuff fits one size smaller than it lists, that is, a Large fits like a Medium, a Medium like a Small. And most of it has a slimmer cut to it as well. I'm 5'11.5" and 178 lbs, with an athletic build, and some of their Large stuff is too snug on me through the chest and back. The problem for me sometimes is that the arm length on the XL is too long, but the overall fit on the Large is too tight.

              With short-sleeve shirts and clothing with elastic cuffs I can sometimes make do, and outside layers like my Rain Trekker jacket are OK in XL, but some of their other stuff just doesn't work (and I am a HUGE mont-bell fan). You sound like a pretty big dude, I'm doubtful that this would fit you in an XL. Mont-bell's sizing chart lists the chest size for an XL at 44-47, so that's probably where you will hit your snag.

              Backcountry has such a great return policy, if you don't mind the potential inconvenience of returning it, you could give it a shot. Good luck.

              I am 5'11.5" and 1801bs. Medium or large...

              I am 5'11.5" and 1801bs. Medium or large in this jacket?

              Best Answer

              I am 5'11.5", 174 lbs., and the XL was a bit too big--too baggy in particular, and the sleeves were too long, but the large was a little tight through the chest and back, just enough to restrict my movement and make me think that sleeping in it, if necessary, wasn't going to be comfortable. A great jacket that I dearly wanted to love and to keep (to have and to hold), but I had to return it. Good luck, I went with the Patagonia Nano Puff Pullover in size large, and it fits perfectly.

              Hello How would you compare this jacket...

              How would you compare this jacket with the patagonia nano puff and arcteryx atom lt or mx? I'm looking for a mid-layer under a shell for winter skiing in temps 10-20C.Thanks.

              This jacket is far lighter than either the Nano Puff or the Atom Lt or MX, largely because it is down fill instead of synthetic insulation. You'll probably do better with the Atom or Nano Puff if you're resort skiing, as this jacket is quite fragile and requires special care. This is more of a jacket for ultralight pursuits like through hiking.

              My son is about 6'4" and around 200...

              My son is about 6'4" and around 200 lbs.
              Would this jacket fit him? Don't want it to bee too huge on him

              It should be fine, if you get it in the right size. This is going to be more of an athletic cut, because of its function. You might be able to get away with a large. Just remember Backcountry has a phenomenal return policy, so if it doesn't fit, send it back!

              Can you layer a down jacket? if its used...

              Can you layer a down jacket? if its used as middle layer, moisture from the base layer will kill the insulation right? I mean the moisture from base layer has to go thru the middle layer to get to the breathable shell .. no ?

              Best Answer

              My .02 from a hiking perspective...regardless of my mid-layer, i try to manage my sweat levels. In a hiking situation going uphill, i usually have my base layer and hardshell on. If i start to get hot, i open the pitzips or front-zips. At rest at the top of a climb, i break out my insulation. Downhill, depeding on temps and exertion, i manage my sweat through the zips or adding/removing my layers.

              I agree that your sweat might hinder downs effectiveness, but you're talking about quite a bit of sweat to wet out your inner jacket to dampen the down. Before it gets to that point, i would open my zips or even remove the down if possible.

              I'm 5'10", 160lbs.,athletic build and...

              I'm 5'10", 160lbs.,athletic build and usually order medium shirts and jackets (40 reg.). Would I be a medium or large in this jacket?

              does this have a baggy fit cuz normally...

              does this have a baggy fit cuz normally montbell products are pretty slim fitting

              Best Answer

              This jacket is a no frills insulation piece. Outside of the front two pockets and zipper to keep it closed, this jacket is for ultralight enthusiasts. That said, the cut is not baggy. At 5.7 ounces, MontBell uses only enough materials to cover your body and keep it warm.

              How do you guys feel about the lack of...

              How do you guys feel about the lack of pockets and have you guys run into any durability issues?

              Best Answer

              I've used this basically every day for 4 months on my Appalachian Trail thru-hike. I will say, it was unfortunate that there aren't any pockets, but if you want pockets, the therma-wrap has them and is a tad bit warmer. It's not as light, but thats the one my buddy uses and he loves it.

              As for durability, I've stuffed it in the sack and pulled it out everyday and there hasn't been any issues. The only issue was a little burn hole -- but that was my fault.

              Awesome jacket, I HIGHLY recommend it if you need to save some ounces and don't mind no pockets.

              If its used as a true midlayer (i.e. under a larger puffy jacket/parka or a shell), your pockets are going to be on those garments. Also, because of the lightweight nature of the jacket, anything you put in the pockets may compromise the insulation (by smashing it).

              Ian's right - if you want to cut ounces and don't mind the lack of pockets, this one is great.

              Unanswered Question

              do you have any Short-sized down jackets?...

              do you have any Short-sized down jackets? I wear a Medium, but the inseam on this jacket is 34" which is too long for me...I wear around 30-32" only...thanks.

              Alot of great reviews about the Patagonia...

              Alot of great reviews about the Patagonia Down Sweater. How does this compare? Anyone know? Thanks,

              Montbell uses 900 fill, while Pata uses 800 fill down. Montbell is probably not as warm - it weighs 1/2 the amount. Its also a tight fit and has no pockets, and utilizes sewn through construction. I use the ex light as a summer alpine jacket where it will probably dip to 40 degrees. Size up - I wear a M in most montbell jackets and I needed a L in this jacket.

              Best Answer

              This is a great piece, but in a different category, I think, than the Patagonia jacket. The Patagonia Down Sweater has 3.0 ounces of 800-fill down covered by 22-denier ripstop polyester, while the mont-bell has 1.8 ounces of 900-fill (equivalent to 2.1 ounces of 800-fill) covered by 7-denier Ballistic Airlight calendered nylon. The Patagonia lists at 13 ounces, the mont-bell at 5.7 ounces. Neither is necessarily better, just different jackets for different purposes, needs, and preferences.

              Interestingly enough, though, BPL did an in-depth test and analysis on down jackets, and this tested within one degree of warmth of the Patagonia Down Sweater, which is an imperceptible difference. Very impressive, given the weight difference between the two pieces. They also concluded that, contrary to popular conception, there is not necessarily a direct correlation between fill weight and/or loft, and jacket warmth. Down quality, jacket materials, design, and construction all play into the warmth factor. Lesson: don't judge a book by its cover. Find out how a jacket actually tested for warmth, and the Ex Light did extremely well.

              Are all the montbell down jackets utilize...

              Are all the montbell down jackets utilize sewn through construction? If not, can you tell me the type of construction used? Ie. Baffled..etc..

              Perusing Montbell's website, the following Montbell down jackets use box construction: Alpine down jacket; Permafrost down parka; one-piece expedition suite. The rest use sewn-through construction. If you are worried about it, go with one of their synthetic insulated parkas. I recommend the U.L. Thermawrap Parka.

              how does it compare to the the Marmot Zeus...

              how does it compare to the the Marmot Zeus in bulkiness and durability?

              Best Answer

              The MontBell is a lighter weight jacket than the Marmot Zeus. It does pack down smaller & is as durable. The Extremely Light Down Jacket does fit a little more snug so you might want to consider ordering up one size.