Black Diamond Couloir

Priced: $43.96 - $54.95 Rated:   - 5 stars out of 5 by 22 reviews.
Black Diamond Couloir
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Color: Burnt Orange
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Black Diamond Couloir -

The Couloir Harness by Black Diamond. A superlight, full-featured low-profile harness for skiing and mountaineering.

FEATURES of the Black Diamond Couloir Harness.
SPECIFICATIONS of the Black Diamond Couloir Harness.


  • 210d nylon Mini Diamond ripstop
  • Fast-drying nylon-webbing construction with traditional buckle


  • Large/X Large fits waist 35 - 42 in., leg 24 - 30 in.
  • Medium/Large fits waist 32 - 38 in., leg 22 - 26 in.
  • Packs down into a stuff sack small enough to fit into jacket pocket


  • Low-profile and flat enough to be worn comfortably under a pack or clothing


  • 2 webbing gear loops and 4 Ice Clipper slots let you rack your climbing gear and ice screws; Black Diamond Ice Clipper is sold separately


  • Low-profile gear loops don't interfere with your harness
  • Leg loops detach from waist belt to accommodate bathroom needs
  • Quick-release leg loops for easy on/off, even while wearing skis or crampons
  • 12 kN-rated belay and haul loops
  • Harness is ideal for glacier climbs and ski mountaineering
  • Load-bearing and strength-rated design
  • Always read and understand the warnings and instructions that accompany your gear.**
The Black Diamond Couloir harness is a minimalist harness for mountaineering or backcountry skiing.
Quick-release leg loop buckles for easy on or off without removing your crampons.
Durable, quick-dry nylon webbing and packs tightly to fit inside your pack.
Two gear loops and four ice clipper slots secure your gear.
Know you're safe in this great Black Diamond climbing harness.


The Black Diamond Couloir is a superlight, full-featured harness for mountaineering and backcountry skiing. The Couloir harness has quick-release leg loops for easy on/off over boots and crampons. Two gear loops keep climbing essentials close at hand. Compact down to a very small size for easy pack storage.

Packable to the size of a soup can that easily stows away in a jacket pocket, the superlight Black Diamond Couloir harness is designed to be the essential skiing and mountaineering harness. Quick-release leg loops allow fast and easy changes while wearing skis or crampons, and low-profile webbing construction allows it to wear comfortably under packs or over clothing. Two webbing gear loops, four Ice Clipper slots and a belay and haul loop complete the package.


The Black Diamond Couloir mountaineering harness weighs only 230g (8 oz.) and packs down so small you can carry it in a jacket pocket.

Weight (see spec chart) is based on size Medium. See specifications below for size detail:

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.

Appalachain Outdoors
The Couloir is a lightweight, minimal, and essential skiing and mountaineering harness for your next adventure. Make your next day exploring secure and comfortable. Black Diamond Equipment is a leader in progressive outdoor gear for a reason.
Oregon Mountain Community
The Black Diamond Couloir Harness is a superlight, full-featured harness with a low profile for skiing and mountaineering.

Mountain Gear
Explore the outer extremes with the Couloir Harness from Black Diamond, a quick-drying nylon webbing harness with a traditional buckle design.

A superlight, full-featured low-profile harness for skiing and mountaineering. The Couloir packs down into a small stuff sack that can fit in your jacket pocket, and it has such a low profile it can be worn under a pack.

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Average Price History: Price History
Review RatingNumber of Reviews
Adjustable leg loops:Yes
Available Color(s):Burnt Orange
Average weight - metric:230 grams
Belay loop:Yes
Country of Origin:Philippines
Droppable leg loops:Yes
Fits waist:28 - 42 inches
Gear Loop:yes
Gear loops:2 loops
Haul Loop:yes
Leg loop size:20 - 30 inches
Legs:28 x 34" / 71 x 86 cm
Material:Nylon webbing
Padded leg loops:No
Padded waist:No
Waist:38 x 44" / 97 x 112 cm
Weight:8 oz / 230 g
Compare specifications to related products.

Black Diamond Couloir Reviews:

Positive Reviews:

This thing weighs and packs down to nothing, allowing you to easily take it on any alpine adventure. It's surprisingly confortable, too, given the lack of padding (especially if you have a couple layers on underneath). I'm sure a huge whipper or hanging in it all day would leave a couple marks, but that's obviously not the purpose.
Having the belay loop is clutch, too (vs. the Bod). You can still get it on/off easily (without having to go over skis/crampons/boots/whatever), but having the belay loop provides an idiotproof attachment for belays, raps, and the like. Likewise, it avoids the temptation to create a belay loop via a carabiner, which is a no-no due to triaxial loading.
The only improvement would be if they could figure out how to use speed buckles instead of the traditional, double-back variety. Dealing with the double-back is a huge pain in the ass with gloves. Make it happen BD!

wfscot at on 06/28/2013

I got this harness a few years ago and it was only available in burnt orange. Now it's in black! how exciting!
Forgetting the fashion talk for a minute, this harness is perfect for mountaineering and ski mountaineering. At 9 oz. it sits in the bottom of my bag next to a biner and ATC for that occasional repel during technical ski tours. I don't have to worry about making space for a full sized harness, yet I can climb vertical ice or rappel on this with confidence. It comes completely apart so you can get it on without removing skis That's key.
It's not much fun to sit in and weight. but it's not designed to be comfortable. Sitting is for a Lazy Boy, in his Lazy Boy.

Courtney Dean at on 11/14/2013

Go to harness for ski mountaineering and alpine climbing where I don't anticipate any falls or extended time sitting. It does not have any padding so don't plan on using this for big days of "regular climbing" but it works great on alpine ice, and 5.easy rock climbing. Perfect for glacier travel, packs up tiny in the bag. I sometimes find that the haul loop sits uncomfortably on my tailbone when wearing larger backpacks. 4 ice clippers can be attached. Gear loops are a little flimsy but I don't think I have ever actually used them. The M/L size fits pretty universally well - go for the other sizes if you are far on either end of the spectrum.

Eric Carter at on 01/13/2013

Awesome lightweight harness

I was amazed at how small this harness packs down. It ships in a Black Diamond pouch the size of a softball. I tried it out recently on a canyoneering trip and was impressed by the comfort of something so small -- however I didn't spend the day hanging in it and swapped out my bigger harness for the day with more and longer rappels.

I would highly recommend this for ski mountaineering, glacier mountaineering, or for activities where you need a harness but won't be loading it all day.

My only minor complaint is the traditional buckle design has a second metal piece that makes backthreading more difficult.
Climber&Canyoneer at Mountain Gear on 07/07/2010

Decent harness

I got this harness for an upcoming Himalaya peak climb and the prep climbs for this and the design is solid. Lightweight, includes belay loop, easily fits on over your puffy clothes and shells with crampons on, has basic gear loops and a haul loop. The only thing I don't like about this is that the buckle is small and is a pain to get on and off with thick gloves on which is pretty much how I'd need to put it on as it is typically freezing when I use it. You should practice A LOT with gloves before heading out.
gearjunky at REI on 09/09/2011

My most-used harness

This thing is awesome!

It's designed for alpine use and at that it excels - it's super light, packs down to the size of a soda can, the dropabble leg loops go on over crampons, and it's so thin and flexible you'll forget you're wearing it - but I also end up using it for indoor top-ropeing on the way home from work. I've got a stiff padded rock-climbing harness but that doesn't fit in my bag so well as this.

- only two gear loops, both in the front
- the buckle is the old-school doublebacking sort
mosfet at REI on 09/09/2012

Awesome harness!

I like this low profile harness I find it less obtrusive for quick climbs where I am not carrying a ton of gear. This harness is also perfect for quick rappelling that isn't necssarilly planned for. It takes about a minute to put on and feels super secure. An important note.. I am 6'4" 280 and am comfortable hanging in this harness.
If BD made the leg loops look as secure as they feel this would be a 5 star review. Not a bad investment if you are going to use it.
Boring Screen Name at REI on 08/08/2013

Light and apt

This was recommended by an REI employee in Fort Collins, CO and I did get to use it on a climb in RMNP. It was light and is durable. Helps especially when you are snow climbing, alpine style. You just need to support your weight in case you slip and will withstand reasonably well. Remember its not for rock climbing as this product is very light and will not handle your weight on suspension for longer duration. At least I would not risk it but an excellent product for its purpose.
DakotaSam at REI on 08/08/2013


May want to size up. I have not used this but wanted to make a note about sizing: All my pants are a 32" waist so I ordered the S/M - described to fit a waist from 28-35". Once it arrived, the s/m barely fit over a pair of pants with the widest possible waist and would definitely not fit over thermals and ski pants.

Otherwise, it packs incredibly small, and very light so I'm looking forward to getting the right size for upcoming ski/climbing season.
skiology90 at REI on 04/04/2011

Like all the other reviews say this harness is the bees knees for ski mountaineering, glacier travel and easy alpine climbs.
It's minimalist style makes it light and very compact which is a big advantage over any harness made for crag climbing.
The feature that really sets this harness apart from something like the Camp 95 (another ultra light skimo harness) is that you can easily get in on whilst you're wearing your ski boots, crampons or even skis.

Kaj at on 05/22/2013

Neutral Reviews:

The Couloir looks like a great alpine mountaineering harness that I want to be stoked on. Unfortunately the pitfalls were too many to stand behind and I ditched this harness after one guided course on Mt. Shuksan, North Cascades NP. I've used the BD Alpine Bod and several Arcteryx lightweight harnesses for mountaineering but I really liked the lightweight and packability features of the Couloir. When on an expedition, I generally only clip my gear to one gear loop on each side, so 2 loops are perfect. Unfortunately, the gear loops on the Couloir sit too far forward so my rack is always clanging on my thighs (folks who use the shoulder sling method need not worry). The sizing is also challenging, I'm 5'9" 145 lbs and the S-M is maxed out in tightness. If I'm in a wind shirt only, it feels like I'm a gangster in baggy pants. Also, the buckle is very tight fitting and small, so it's very difficult to adjust, let alone managing it w/ gloves on in bitter temps. All complaints aside, if this harness fits you well I highly recommend it: it's comfortable , affordable, and wildly lightweight, for everybody else though, the BD Alpine Bod is still around for a reason.

Micah L at on 09/24/2013