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MontBell follows the Japanese tradition of kinobi: function is beauty. The Men's Thermawrap Pro Insulated Jacket embodies this philosophy by combing the highest quality mountaineering features into a lightweight, simple parka. 80 grams of improved Exceloft insulation make the Thermawrap Pro 10% warmer and more packable than older models—compressing down to fit into the included 5.7in x 10.5in stuff sack—while retaining the synthetic insulation's hydrophobic properties. Windproof nylon treated with DWR provides a soft, quite, and durable face fabric perfect for mixed or wet conditions. 

Stay comfortable during mountain ascensions and everyday outings with the ballistic nylon taffeta lining. Zippered handwarmer pockets and two internal drop pockets keep your hands free when traversing difficult terrain. The unobtrusive elastic cuffs, two-way adjustable hood, and hidden hem drawcord lock out wind and cold during extended hikes in less-than-favorable weather. Weighing in at just under a pound, the Thermawrap Pro is the perfect mid-layer jacket to stuff in your duffel while traveling or tuck in you pack during a week-long mountaineering trip. 

  • 20D ballistic nylon
  • DWR treatment
  • 80g Exceloft insulation
  • 2-way adjustable hood
  • Nylon taffeta lining
  • Included stuff sack
  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

Awesome Puffy

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

I love this puffy. It has more insulation than most puffy jackets (80 g) and is breathable and comfortable. If Im walking around town on a cold day, I find that I am not cold, nor are I overheating in this puffy. I insisted by girlfriend get the women's version after I kept catching her "borrowing" mine.

For winter mountaineering in general, I am ad advocate for intelligent layering. When Im in motion, I usually generate a lot of body heat. Therefore, I usually keep this jacket in my pack on the way up (it takes up 2 L of space for a Mens Large, and it does not weight much). When there is a pause in the action, be that at a belay ledge, or any other prolonged stop/rest, I pop this on and keep warm. It is also in my pack in case I need to ride of a nasty storm.

This jacket is also a must have on those bitter cold and windy ski days.

Overalll it is good stand-alone ajcket for camping, spring/fall hiking, and around town. In the winter, I wont leave home without it.

All Arounder

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

I have more synthetic jackets than I should admit to, but this is the one that I turn to for BC skiing. Why? This jacket provides the best balance of weight, warmth, protection, and durability, The jacket is lightweight, but not so much that it is fragile. I stuff it in with my shovel and ski crampons all the time. It's warm enough for everything I've encountered (single digits and whipping wind) and gives you a really secure feeling when you zip it up. It's certainly warmer than the paty nanos and the Rab xenon. It's also cut slightly longer so it stays put under a pack (kinda like arcteryx). In short, it's not the stand out in any one category, but it scores high across the board on everything.

I like it! Recommended

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

Really nice, basic, simple, synth insulated jacket. Very light yet very warm. Kind of minimalist but that works really well in the backcountry. Fit: i'm 5'10" 175lbs and the size L fits well. Loose enough to wear some layers underneath on really cold days; but not too loose -- it works very well as a liner under a hard shell. Nice cuffs. Nice Hood (I've run into a lot of crappy hoods from other brands lately). Hand-warmer pockets will actually keep your hands warm (I've run into a lot of un-insulated hand-warmer pockets from other brands lately). Things I would suggest as improvements: one, add a reach-across chest pocket. Two, perhaps add a touch more insulation, perhaps 100 grams instead of 80? 80 is ok for a lot of conditions, and the jacket packs down to a nice small size. But, 100 would be better I think for really cold conditions, and I doubt the pack-down size would be too badly increased. Just my two cents. But I really like this jacket a lot. I've tried a lot of other synth jackets over the last few winters and I'm now sold on Montbell. They really do a great job with thoughtful features/design and execution. Highly recommended.

My go-to jacket

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

A long time fan boy of MontBell, I purchased one of these bad boys about a year ago. Immediately, it turned into the jacket I pick up when I leave the house everyday from October to April. Super comfortable, very warmth for it's bulk, and it doesn't look hideous. This jacket backs up my belief that Montbell makes the best insulation. Over a year of HEAVY use, there are absolutely no signs of wear, and it is as warm as it was when I bought it, as far as I can tell. The outer material seems to have a little bit of water resistance, and it stays warm when it gets wet, so it has turned into my less-than-ideal-weather puffy, and my down stays at home.

As for fit, it's not an slim cut, but not super bulky either. I'm 6'4" 225lb, and the XL(my normal size) is large enough for me to wear a base layer and midlayer (pull-over, etc) under the thermawrap without feeling tight or restricted. The arms are slightly slimmer than the body, which is nice to keep them from snagging/ripping when backpacking or climbing. I can put my XL goretex shell over it, so it's the perfect fit for layering in my opinion.

My go-to jacket

Great For On The Move

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

This jacket is good for people who sweat in primaloft jackets or other jackets. I have found this jacket to be very breathable. With an R1, I have taken the jacket down to 15 comfortably while on the move.

Just be aware, that in cold conditions, 15F and lower, if you stop in this jacket, you will get cold. Quickly.

The reason I love this jacket so much is that I seem to sweat in other jackets, especially in the arms, while I am on the move and in this jacket, in most cases, I do not.

The fabric is very durable. I have bushwhacked, taken shortcuts in wooded areas down mountain sides, used it at work and dont have any rips in it. I have had mine for a year now and have used it probably from October to June pretty substantially.

I am actually thinking about using the one I have now for work and buying a new one for hiking.

It seems to me that the sizing seems pretty athletic. A small is perfect for me, enough room for an R1 to go under by not baggy by itself. I am 5' 7", 145 lbs.

I think with an R2, the Thermawrap could hand lower temperatures better while on the move lower then 15. Last winter when it was really cold and it didnt get above 10 degrees for a couple weeks, I was pushing the limits with this jacket and was quite cold when not moving.

Warm as toast

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

I bought this for colder, winter trips in Australia. It's the warmest thing you need unless you're planning on snow conditions. When it's just below freezing I've almost fallen asleep lying out in this staring at the stars. Makes a great pillow too :-) The zip pockets, etc mean that it's more practical around town than more ultra-minimalist designs.

Sick Bird! Great fall mini-puff!

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

I am 6'1" 170lbs. Medium fits like a glove. This is the perfect jacket if you're looking for a light weight puff to get through Fall and Spring. I imagine I'll be rocking it under a shell this ski season as well, but haven't tested it yet. It has an athletic fit and has great range of motion.

Liner more than jacket

  • Familiarity:I returned this product before using it

From the photo this looks like a substantial jacket. We purchased it for someone who spends a great deal of time outdoors. It is fairly thin and might make a good liner for a windproof shell. It's not all all-purpose jacket we hoped it would be.

Great synthetic jacket!

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

This is a really great synthetic puffy. I have a slightly older model - seems the main diff is that they added internal pockets - I wish I had that to stuff gloves/hats into.

Very durable construction, I've used and abused mine. I'd be happy to recommend this just as much as a nano puff.

When I stuff it into my bag, I can definitely tell that it doesn't compress like down, but that said, it's not really a big jacket. And you have more latitude if it rains on you.

Helmet compatible hood, practical all around jacket. I would not recommend it for around town-only because the helmet compatible hood is kinda big and bulky unless you have it zipped all the way up. If you want one light synthetic puffy to do it all, this is an excellent choice!

My uses so far: 14,000' peaks, winter aerobic sports, around town, go-to insulating layer whenever I wander around Colorado.

For size, most alpine/performance gear (Patagonia, Rab, MH) fits me in small, this does too.

What size should I buy? I'm 5' 7" 175 lbs (athletic build of course) and my chest measures 41" on the dot. I usually wear a medium in most brands but I heard Montbell can run a bit small.

Best Answer

MontBell does have kinda a funky fit that is normally a little shorter in length but I think it will actually be beneficial to your body type. At a 41 inch chest I am pretty hesitant to suggest sizing up to an XL unless you plan on getting more jacked. If you are maintaining your weight class stick with the size Large for now.

Which is longer (has better coverage) front...

Which is longer (has better coverage) front and back - the Montbell Thermawrap Pro current model, or the Arcteryx Nuclei? When you put on a men's large of each, and a women's medium of each, how much of a difference is there in length? The Nuclei looks substantially shorter from photos, but it's hard to tell without trying each on.

Hi, does this jacket have 2 inner pockets?...

Hi, does this jacket have 2 inner pockets? The manufacturer website doesnt mention this... Are they zipless? Thanks.