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Mountain Hardwear
Kor Airshell Warm Jacket - Women's

4.37037037037037 out of 5 stars
27 Reviews
Current price: $129.99 - $139.99 Original price: $199.99
Up to 35% off
Color:Jack Pine


Size Chart


Why We Like the Kor Airshell Warm Jacket

We know the feeling all too well—on a demanding skin track or steep trail we find ourselves breaking a sweat in our now stuffy jacket. Thankfully, the Kor Airshell Warm Jacket solves this problem with a construction that allows high airflow to regulate body heat while we’re on the move.


  • Versatile jacket performs on your high-output pursuits
  • Pertex Quantum Air fabric for breathable durability
  • Lightweight insulation offers lofty warmth when needed
  • Quick-drying AirMesh lining keeps inside comfortable
  • Zippered hand and chest pockets secure small essentials
  • Elastic cuffs and hem drawcord help seal out chilly winds
  • Adjustable hood can provide extra warmth and coverage
  • Item #MHWZ9MR
[face fabric] Pertex Quantum Air 20D, DWR (stretch ripstop) [lining] AirMesh
high-loft fleece (synthetic)
Center Back Length
[small] 24.5in
fixed, adjustable
[external] 2 zippered hand, 2 zippered chest [internal] 1 drop-in
Claimed Weight
hiking, backpacking, climbing, running, skiing
Manufacturer Warranty

Overall Rating

4.5 based on 27 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 1 reviews
3 Stars - 2 reviews
4 Stars - 6 reviews
5 Stars - 17 reviews

Fits Slightly Small

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

April 3, 2024

Very comfortable

Love this jacket very much. Breathable wind-stopper.


Originally reviewed on

2 out of 5 stars

February 27, 2024

Sleeves too short but otherwise good

Wanted to love this jacket as i have had two kor strata jackets before however the sleeves on this were just too short. Jacket fit perfect in length, around and was warm just wearing in the house but had to send it back due to sleeve length. I am 5'8, 165, athletic and wear a medium in MH jackets.


Originally reviewed on

5 out of 5 stars

February 8, 2024

Great jacket for aerobic activities

Really love the jacket. I use it for fatbike and xc skiing. I am 5’9 and 150lbs and although the sizing suggested medium, sleeves were a bit too short. Large one still fit good and I can add a mid layer for cold days.


Originally reviewed on

4 out of 5 stars

January 4, 2024

Good jacket

Size Bought:
5' 4"

The jacket is good, light , but not really warm . Run a little large for me.

Maria undefined
5 out of 5 stars

December 30, 2023

Great shell

Love this shell, super soft, comfy and warm. It’s perfect for a fall hike and great under a shell for skiing. Fits in a daypack and barely takes up any room.


Originally reviewed on

5 out of 5 stars

December 27, 2023

Great jacket

I initially bought this jacket for winter mountain biking in the northeast, but have also been using it for winter hiking and will probably use it for other winter activities. I love that there are 4 decent sized pockets and a hood. It has a bit more insulation than my fall bike jacket which is just 1 layer. So far I’ve found it to be comfortable, warm (with layers underneath) yet breathable. Overall, I’m very happy with this purchase.


Originally reviewed on

5 out of 5 stars

November 16, 2023

A light and warm jacket.

The jacket is light and warm. Love the zipped pockets. Very handy for traveling.

MH fan from Toronto

Originally reviewed on

4 out of 5 stars

November 15, 2023

Great cold weather running/hiking jacket!

I live at 10k feet elevation, and after trying a different MH jacket and returning it, I got this one. Soooo glad I did. Perfect for bluebird days, for cold night hikes and runs, and as a layering piece! This jacket has great movement, you don't feel constricted at all. Last night when I put it on over a tank and my smartwool, I was a little worried about the cold factor as it was 25 degrees out. I didn't get cold at all! Four miles in and I was still good. When you put it on it almost feels like you're throwing on another sweatshirt. I do wish the pockets were fleece lined not mesh, as they won't last and that's the only spot where I was a little chilly. That is why I knocked a star off. There are gathering cords in the pockets which cinch in the inside of the jacket as well, nice feature. The red color is great, stands out, not common, and is a warm red. I'm 5'10", 165/170# and long armed and the Large fits just fine, I wore a thick sweater under it to work and it fit perfectly.


Originally reviewed on

5 out of 5 stars

November 3, 2023

Exactly what I was looking for

I love this jacket! Fits perfectly - I am 5’5”, 145 lbs athletic build (bought a size medium) and this jacket is the lightweight soft shell I have been wanting. Slim fitting but not too tight, breathes well, so far I’ve worn it mountain biking, hiking, running, and cross country skiing and it’s great for all of those. Will probably also use it backcountry skiing and as a layer for resort skiing this winter. 100% would buy this again.


Originally reviewed on

4 out of 5 stars

November 1, 2023

Perfect for hiking

I've used it once or twice and have initial impressions
Size Bought:
5' 2"

Great, lightweight jacket, perfect for San Diego. I had an Arcteryx Atom jacket that sadly fell apart after 12 years and replaced it with this. Surprisingly I prefer this jacket as the fit is roomier, there are more pockets, and the sleeves are not so snug as the Atom. However, like other reviews from Backcountry I did not receive the same jacket as pictured. The blue jacket I received is lighter in color, blue (not black) on the inside, and does NOT have an internal drop in pocket. I knowingly took that gamble when I ordered it as this is not a deal breaker for me. There are multiple zippered pockets on the front, perfect to shove a cell phone in while hiking. Minus one star for misleading advertising.

Megan M