I wear this under ArcTeryx Stinger Shell in the NE skiing & boarding - nice trim fit - the perfect layering piece. Great breathability. The Denali shell is far to bulky for a good layering piece. I have Patagonia Caliapine 2 & 3 tops, so I use the Calipine 2 for warmer days, the 3 for colder days, North Face Scythe Fleece Jacket, and my Arcteryx shell on top - I'm good for all conditions! I used to ski 75 days a year in CO and if I was still spring skiing there (April through June), I might need a lighter layer, but otherwise great - I'm 6' 190lbs fyi, and a large is perfect

It looks really good in person, with a good athletic fit. Not designed to be worn without a shell of some wind blocking ability in my opinion, but neither is the Denali which everyone wears anyway. This provides excellent warmth indoors, and it provides the best insulation you could ask for when paired with a shell (heaviest weight grade Polartec Thermal Pro). I purchased this jacket to layer with one of TNF flight series shells for the fall, and the Sentinel Windstopper for insulation during cold rainy days.

I got this looking to improve my layering system and also hoping to use it as a casual jacket as well. I have to say that I am quite impressed. While hiking in 20 degree weather, this jacket with a performance shirt keeps me really really warm; almost too warm. Even with a good breeze, it holds up well. Judging by the reviews on here, at first I was expecting to be cold in a few situations on some ridges here but I never needed to break out the shell. Sure, in a stiff wind, a shell is definitely needed but that is to be expected seeing as this is a technical piece of gear.

Overall, I'm glad I chose this over the MH Monkey Man jacket. I'm a fan of the Summit Series by NF so I'm glad this is working out perfectly.

BTW, I am 6'4" 240lbs and the XL is a nice slim fit. I tried the large but it was too snug and too short.

Probably the warmest fleece I own. Definitely not a stand alone jacket for the cold, but it provides great warmth underneath a shell during the winter. It also breathes really nicely. The fit is just a bit odd in that the sleeves run kind of long and the torso is a bit short.

I ordered a large and it fits perfectly. There are stripes inside the arms that I didn't notice from the photos. Super soft outer and very soft inner. Definitly lighter than the fleece weight suggests, but it will be a nice warm layer under my ski jacket.

This isn't a jacket - it's a thermal layer. Wear it around the house or with a shell/softshell. Don't count on it to be a jacket. Do wish i were a 1/4 zip but haven't come across a technical, packable, active layer better than it for the price. I'm 6 feet 170 lbs and wear a medium, although i have to wear a large in everything else. If you're on the border between sizes, go with the smaller size because this is intended to be a thermal layer and stretches well.

This jacket is awesome IF used under a shell (or something windproof). I took it out during a snow storm with a shell in 10 degrees and walked to a store about a half mile away and was kept very warm. I actually had to unzip the shell some because I got too warm! I still can't see this jacket being very functional during winter without some kind of windproof shell/jacket coupled with it as it lets even small breezes through. There are other options if you want a high warmth to weight ratio such as the MH Monkey Man and Arcteryx has its own version; both using the Polartec Thermal Pro material.

I have a TNF Denali Thermal, which i LOVE, but wanted something thinner (the Denali is thick) to layer with more things, pack smaller, etc. This seemed absolutely ideal -- all the benefits of ultrawarm thermal pro fleece, yet more packable and lightweight. It's very layerable (under things), very warm -- warmer than anything its thickness, very breathable and stylish. But, as with any thermal pro jackets, it's HIGHLY porous to the wind so definitely wear a shell in such conditions. Everything seemed perfect, except for the neck. It's waaay too big. At 5'10, 205lbs, size 44 i'm a solid large to xl. I dropped down to a medium (snug fit for sure but the jacket stretches and the sleeves are long) with the hopes of getting a decent neck to keep me warmer. No dice. The Denali 300 wt. has a nice cut that seals in the warmth, keeps out the elements. This is more like a cowl that just lets cold air in, warm out, kinda defeating the purpose of the jacket. If you can get past this, it's a great jacket. Consider MW's Monkey Man Jack for a possibly better fit. Glad i got my Denali Thermal before they went the way of the dodo.

I haven't had this jacket for too long, but I can say that the wind TEARS through it and its not a great by-it-self jacket if your just watching friends rock-climb in VT while its 40 degrees out. I haven't tested it out when doing active things like skiing or snowboarding or even running. It does dry pretty fast though, its true to its size, and its very packable/light. I ordered a small and I'm about 5'7", 150lbs with a 38" chest and it fits very well although it can be annoying if you add too many layers underneath as it gets tight fast. The material used is VERY soft and it is a nice looking jacket.

I was expecting a miracle I guess when I got this thing and I only got an alright jacket. Still got some tests to run though....

This is a decent jacket, but not exactly technical. Very stylish, fits great and looks good too. Works well to keep you warm if you wear it under a waterproof/windproof shell. Will not keep you warm without a shell as the wind blows right through it. Best use for fall hikes in comfortable temps with no wind.

it looks great, nice colour and fit cut, now ... its a bit too warm for a semi cool day, but on a cool day the wind blows thru it, so it doesnt really serve another purpose but to be used as a layering piece, its not really packable as it takes about the same space as a Millet belay jacket.

This jacket looks very cool and that is about it. The wind goes right through this thing. It might be ok to layer, but really the wind goes right through it and I was very cold and disappointed.