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Get a leg (or two) up on the cold.

Your legs carry you through all your adventures, so make sure they get the warmth they need. The Western Mountaineering Flight Down Pant protects two of your most valuable mountaineering assets from the biting cold that threatens them. Not only does premium 850-fill goose down provide insulation without bogging you down, but a DWR finish sloughs water when you're wearing the Flight around camp in the snow.

  • Adjustable waist belt for optimal fit
  • Full-length side zips provide easy entry and exit
  • Elastic cuffs help seal out cold and seal in heat

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Here's what others have to say...

What type of baffle construction does these trousers have? Stitchthrough or box wall?

Best regards

Andreas Broberg

Hey Andreas, these are stitch through construction. Let me know if you have additional questions!


Western Mountaineering Rep


Life Savers

  • Familiarity:I've put it through the wringer
  • Fit:True to size
  • Height: 6'2"
    Weight: 185 lbs
    Size Purchased: XL

These lightweight, very packable and incredibly warm down pants accompanied me to a recent winter trip to the Arctic. Initially thinking they were overkill, the were absolute lifesavers while travelling through the arctic wilderness. They zipped on and off easily over my goretex and were perfect for the times in between climbing and skiing. I know pack them in my emergency kit to help keep a potential injured victim warm while waiting for or during transport. They are simply amazing. My only gripe is that the material, though necessarily light, is very sensitive to cuts and nicks. A stuck zipper actually punctured the material and needed patching. A little tight on the ankles as well.


Won't leave home without them

  • Familiarity:I've put it through the wringer
  • Fit:True to size
  • Height: 5'7"
    Weight: 175 lbs
    Size Purchased: Large

Used these on a winter camping ski trip to Svalbard in March. These pants were integral in basecamp as well as the snowmobile rides. I really enjoyed how easy it was to get in and out of them with the full zips down the side. After skiing a line or getting into basecamp this was the first thing I put on.


Will change your life

  • Familiarity:I've put it through the wringer
  • Fit:True to size
  • Height: 6'
    Weight: 167 lbs
    Size Purchased: Large

My life got so much better now I have down pants. Not sure why I never had them before. Such a great addition.

I used these pants in the Arctic, in Svalbard on a ski mission in the heart of winter. Our trip was in March and we spent 12 days camped on a glacier in -20C temps plus wind chill and these pants were probably the single best piece of gear I brought. I would have survived without them, but certainly not been as comfortable as I was. Sitting on a snowmobile for transport across glaciers, in camp, at lunch. The side zips make them easy to put on even with gloves and they are so small and light that they will live in my pack most days ski touring back home also.

Only comments would be the lower leg is very slim on these pants and makes going over a ski pant and boot odd but I imagine they are for climbers so you don't snag crampons.

Material is light and a little fragile, but these aren't for abuse as your outer layer. Treat them with respect and they are bomber.

Sized for wearing over the top of your outer layer so order your regular size.

Do yourself a favour and get some down pants!


very nice

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

Warm, light, convenient, cool looking, it has all. Love it.

I'm worried about the size-zips being...

I'm worried about the size-zips being uncomfortable for side-sleeping. Has anyone had that issue?

Best Answer

From what I know I don't show anyone complaining about the side zips being uncomfortable. Most people have said these are extremely comfortable, and if you're unhappy with your purchase you're more than welcome to return it. We have one of the best return policies out there!


Absolutely the Best

    I purchased these pants not too long ago and they are by far the best quality, warmest, and amazing fit down pants on the market. True to sizing, Recommended for cold mountain weather. Not sure why Back Country will not carry more Western Mountaineering gear. Way to cool of gear. Check out their sleeping bags as well. Off the Charts!!!


    Warmth and flexability

      These pants are are incredibly lightweight and extremely warm. I was amazed at how thin these pants were. I purchased them to try out on Aconcagua this last season and they performed incredibly. The Pertex fabric on the seat and on the knees is really nice which allows you to sit and kneel without the concern of saturating your pants. The design of the pants really articulates with movement in the knee and hips, which really allows for dynamic movement and stride. A lot of down pants really cut into your gait especially with a parka, but these pants keep a really low profile and considering they are 850 down fill that is a great accomplishment by the makers at Western Mountaineering. I paired these pant for numerous reasons with the Millet Expert Down and they paired quite nice with one another. Some technical notes I really like about these is the full side zips. Some manufacturers are using this design but some still lack that integration and it is really handy getting them on and off when climbing and running into impromptu weather systems. The other technical feature that I really like is the articulation in the knees. It almost reminded me of Arc'teryx design or some of the Norrona pant wear with articulated knees which makes a smoother movement for ascending.