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A featherweight harness for technical and vertical adventure.

If your planked adventures take you to less-than-ski-friendly terrain, you'll be glad you packed your Black Diamond Couloir Harness. Since it weighs in at just 230 grams, consider this your reminder that it's even there. When you're about to work a short rappel or glacier traverse, just tie in and go.

  • Load-bearing and strength-rated design
  • Webbing gear loops and ice clipper slots for your hardware
  • Can be put on and taken off while wearing skis
  • Low-profile gear loops don't interfere with your harness

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Here's what others have to say...


Light and reliable

  • Familiarity:I've used it once or twice and have initial impressions

I have not used this out on the mountain, but have practiced rope work, prusiking and crevasse rescue drills with it and it seems great. The harness feels surprisingly comfortable while still proving light and packable. Even while hanging in the stripped-down harness for prusiking up a rope, it seemed well-balanced and supportive. It folds into bag about the size of a pop can. As far as the buckle, it takes a little extra dexterity, but it was not nearly as much of an issue as I feared after reading other reviews. Once it's on, it's easy to forget about. Overall, I think it should work about as well as anything for mountaineering needs.

Although it seems it is not the intended use, can this be harness be used for lead climbing on sport routes?

In a pinch yes. But it would be uncomfortable. The fabric gear loops are tricky to unclip wire gate biners from.

You'd have to tie into a locking biner off the belay loop.

If you're trying to have one harness for Alpine and sport, This is not it.

The BD Bod would be a better choice in terms of comfort and functionality of the harness.

Trust me... NO ONE wants to take any kind of lead fall in a webbing harness with no padding.


Light, Packable, Trustworthy

  • Familiarity:I've put it through the wringer

I love this harness and I think every ski mountaineer will too. It's light, durable and you can trust that it works for a variety of different purposes. Whether your rappelling or need to be roped up on a glacier or while making a ridge traverse with a bit of protection, this harness is for you. The mountaineer, the traveler, the weight conscious. The only reason I'm not giving it a 5 star review is because I think the sizing is a bit weird. I recommend for anyone using this with ski gear over over more than one layer of clothing to buy the size large. I have a small waist and this harness in size M barely works with my ski pants.

Light, Packable, Trustworthy

Great for mountaineering

  • Familiarity:I've put it through the wringer

This is a mountaineering-specific harness - don't buy it expecting lots of nice padding for long hanging.

It's great as a super compact, lightweight harness for mountaineering, skiing, or glacier travel. For any kind of trad climbing I would look elsewhere. I love it for the climbing gym as it packs down smaller than a Nalgene (and typically you're not hanging for very long in the gym). During two long rappels in RMNP (Colorado) this harness became quite uncomfortable with its lack of padding. Only 2 gear loops which makes racking a lot of gear during an alpine climb a bit of a hassle. The double-back buckle is also a hassle and the small diameter webbing is tough to adjust with heavy gloves on. The adjustable/unclippable leg loops allow you put this harness on over mountaineering boots and crampons easily (skis as well I imagine).

As long as you understand what you're getting into, this is a great harness. I bought a Petzl Aquila for sport/trad/long alpine routes and keep this one as a backup. Just my $0.02.


Initial Impressions

  • Familiarity:I've used it once or twice and have initial impressions

Tried it on and thought to myself "this is a pile of junk, how is it going to hold my weight?" Well I tied a rope onto my stair bannisters and hung from it to test it before I went on a mountain. The Harness is super duper light, extremely durable and strong, can pack down just like a down jacket and most importantly, its comfortable.


Small size, Big punch.

  • Familiarity:I've put it through the wringer

For skiing in glaciated terrain, ski mountaineering or just even the quick ski cut, this is the best harness there is. So dang light and extremely packable making it easy to throw in your pack for when you don't need it and quick and comfortable to put on when you do. Skiing's best harness.

What is the sizing on this?

Best Answer


Waist: 28-35" (71-89cm)

Leg: 18-24" (46-61cm)


Waist: 32-38" (81-97cm)

Leg: 20-26" (51-66cm)


Waist: 35-42" (89-107cm)

Leg: 24-30" (62-76cm)


Waist: 38-44" (97-112cm)

Leg: 28-34" (71-86cm)

Jared D.

Expert Gearhead

800.409.4502 ext 4055


Strap up for that summit

    Obiously light and geared toward mountaineering, so don't let that cheap price tag sway you. That said, you can put on over my skis (god send)! Only hitch is the sizing, make sure to go bigger than you think, you'll most likely be wearing more layers than you think. Better to have a harness that fits at the summit than the approach trail yea?

    Strap up for that summit


      This harness is very basic and light. Not ideal for very long rappel, because your tapes may not have much comfort. But it is great for those who want to make tracks in which there are obstacles that require climbing or descending. I liked!



      • Familiarity:I've put it through the wringer

      Have used this harness for a bit of everything, mostly glacier travel but also ice climbing and rock climbing in a pitch.


      - tiny, lightweight. This is a very big pro, as it weighs almost nothing and packs enormously tiny. Note: not very padded, so I use a different harness if I plan to hang in it at all.


      - the front buckle is the worst buckle design in the history of buckles. It's really hard to double back in a warm room with bare fingers, and almost impossible to do when you are very cold with gloves. There is no earthly reason it needs to be so difficult.

      - the little buckles holding the leg straps up (well, it appears that is their intended purpose, I don't see them actually doing much) have broken and now dangle forelornly. I would have to have them re-stitched in order to replace them with a different buckle. So I tie the little straps to something so they don't get caught. They are not weight-bearing but the buckle is still poor quality.

      All in all it's decent, it's light and small and there are many occasions where that is the most important, but it could be made with better buckles and save us all a headache. You may want to consider other alpine harnesses.

      I would have to absolutely agree with the buckle design. Although I use this harness exclusively on cold trips where I am providing the padding with extra clothing, getting the front buckle going at 10 degrees during a pitch black alpine start is horrendous.


      Love it

      • Familiarity:I've put it through the wringer

      I spend a good deal of time on extended back-country trips so I've wound up using this harness for rappelling, rock and ice climbing, glacier travel, and moving on fixed lines. Once again, I love this harness.

      As others have said: the size and weight are awesome and it's super easy to put on and take off so you don't have to fumble about when you're wearing large boots, crampons, or anything else on your feet. I'm also impressed by how comfortable it is, even when weighted, considering how minimalist it is.

      As for sizing, I didn't have any problems at all. I wear size 6 in women's pants (an XS/S sport climbing harness) so I went for the S/M, figuring I would need more room for layering. Even when I'm just in base layers it fits me so that I have a few extra inches that I could tighten it, and when I'm dressed for warmth I have plenty tail to safely double back.


      Very good skimountaineering harness.

      • Gender:Male
      • Familiarity:I've put it through the wringer

      Light and comfortable, you can have it on for the whole day. The only disadvantage are the buckles that are hard to handle. Especially having your gloves on. Gear loops could be better, but how much gear do we have on them skitouring.

      Light, yet stout

      Light, yet stout

      Approaching the summit of Three Fingered Jack in central OR.

      Awesome picture Karen !!!

      I selected this image to feature on the homepage of in our Activity Feed! Congrats on being GOATWORTHY !!!

      Glacier Country, NZ

      Glacier Country, NZ

      You know you're somewhere really cool when you have to fix a rope and clip in a harness just to go to the toilet!

      Awesome picture Richard !!!

      I selected this image to feature on the homepage in our Activity Feed! Congrats on being GOATWORTHY !!!

      Hope you are getting after it in the austral winter!