Mountain Hardwear  Kor AirShell Hooded Jacket - Men's

This windshell exceeded expectations when it failed to rip after I wore it while establishing two new bigwall rock routes in the Himalaya with an abundance of abrasive offwidth and corner climbing. The barely-there fabric didn't tear at all while keeping me just the right temperature and blocking the wind.

I love this windbreaker. I was looking for something I could throw over a hoodie or alpha direct shirt that would cut the wind but still be breathable. This jacket definitely works well for that. I tried several other well-known brands, but none were as breathable as the Kor and caused me to overheat. Note that because it’s so breathable, that also means it doesn’t cut the wind quite as much as other windbreakers, but having said that, it generally blocks the wind well enough for me unless it’s extremely windy out. Love this jacket!

I love this jacket. I live in South Dakota and our weather is all over the place. I wear it over a fleece for trail running or mountain biking on cold or gusty days. If I get get too warm, I take it off and clip it to my running belt or biking hip pack. It has done well in light rain also. Extremely light weight and stowable. I am 5' 11" 175 lbs athletic build and Large is great.

DO NOT wear this with a backpack. The material can’t withstand wear from the straps and will lose all waterproof qualities. One 40 mile hike and the jacket is toast. Shame, I otherwise really liked it, and it’s very pack able, but alas has no durability :(

Wore it on the via Alpine trail summer hike. Awesome in sun and wind. highly recommend it.

This jacket surpassed my expectations. It's light and comfortable. Not too hot or cold for cool days and the DWR coating works really well. I used to have a windbreaker from another brand and this is significantly better. I'm 6"1' 173lbs and medium fits me perfectly. I can layer under with a thin fleece or wear it solo. I wouldn't use it as a designated raincoat but I haven't had any water get thro it even in moderate rain showers. I tried on several different brands before choosing this one and I like how it's not see-through. I definitely recommend it.

Bought this just before summer trip to Alaska where we’d be hitting different ports, doing multiple hikes, and the weather was always changing, especially when you’d hit these pockets of microclimates. Upon receiving it Iwasnt sure if it was worth the price, but didn’t let the lightweight feel fool you. Warner than it looks and kept my temperature regulated just fine with a long sleeve base layer. Held off light rain when I needed it. It’s not a tie rain shell, but much more than a windbreaker. Whatever it is—it just works.

Purchased this hoody for running / trail running and it does not disappoint. I can barely feel it while wearing it, breathability is fantastic (not clammy despite exertion or dries very quickly), but at the same time provides protection from wind / chill. I'm 6'5 182 lbs and purchased an L - perhaps a bit baggier than I had hoped, but hard to tell if a M would have been better given my height. Only a minor detail, it's a wonderful layer!

This has been one of my favorite running wind shirts so far. It has kept me surprisingly warm on winter runs with only a mid to heavyweight base layer under (25-40F). Fit is slightly baggier than I would prefer for running, but makes it easy to layer (bought size L, I'm 6'1" ~185lbs). Can't comment on the hood yet since I haven't had to use it.

To;Dr—it’s super good enough. I have owned the first iteration of this shell which was called “Airshell” about 4 or 5 years ago. Since then I’ve used it climbing in Redrocks and JTree. As well as just a light weight pack able shell I keep in my fanny pack. It’s so versatile that I’ve built a lightweight pack able layering system to go with it: Backcountry Highloft Hoodie and Adidas Terrex Primaloft Vest. It is roomie enough to fit over these layers and yet trim enough that when crack climbing it’s not impeding your vision. Breathability. I don’t have the numbers. But it’s plenty breathable. I wear it by itself as a sun covering as it’s rated 50spf. Durability. Its design brief is a ultralight pack able wind shell. So I wasn’t actually having high expectations for its durability. But having survived climbing trips to redrocks and jtree im very impressed. It seems to do quite well against rock abrasion from the sand stone and lime stone features of the aforementioned locations. I wouldn’t trust it to hold up to crack climbing in Yosemite or where you might encounter ice edges. Again these hard razor sharp edges can slice through many shells so be careful around those types of terrains. And though I’ve done hiking in desert climates. I didn’t have go cross country where I’d encounter cacti. Or trees either spines and needles. Again you’d need Goretex Pro 1000 denier type durability to withstand those types of plants. Comparison. North Face Summit Series Off Width Shell. Janji Zephyrunner Shell. Between these three jackets you have the range of hood design that are represented by the market. On one end you have the north face option which is a technical over helmet design. In my opinion for this type of jacket this is overkill. Especially because it directly impacts the packability of the jacket. To the other end you have a very basic almost 90s og hood design of the Janji which is oversized and then offers a simple Velcro adjustment on the back of the hood. We can do better than this. There’s not a spot where you use the Velcro that will both keep the hood in place but out of your field of view or keep it fr being blown off your head in strong wind. This is where the slim fit hood of the Airshell really shines. It has an elastic cinch on the upper third of the hood. This couple with the tight slim fit of the hood keeps it in place on your head and out of your field of view. The stretch of the jacket also means that it turns with your head. The sizing of the hood is perfect as well. Underneath it’ll fit a skull cap, fleece beanie, or baseball cap. If you climb or ski, it’ll easily fit underneath the helmet and the soft shell feel also means that when you do it it’s not scratchy or scraggly like some harder soft shells. Pockets. I’m not a huge fan of the pocket design. They work but as a technical shell where you’d want to hike, climb, skin track in the winter, even ski dive in, or other outdoors activities the basic pockets that are placed on the lower hem so that they’re guaranteed to be covered by pack straps or a harness is a design oversight. This is where the north face option is better. Also as a running shell why not have dual chest pockets? Keeps it lighter weight and keeps the items closer to your center of gravity when running to minimize jostling.