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Black Diamond
Couloir Ultralight Harness

4.76 out of 5 stars
25 Reviews
Current price: $59.97 Original price: $99.95
40% off


Size Chart


Why We Like The Couloir Ultralight Harness

Black Diamond Couloir Ultralight Harness offers us all of the weight savings and packability we demand from a snow-mission oriented harness. The hydrophobic construction works to prevent icing up while we belay out of an exposed ski line, meanwhile the dual ice screw keepers let us rely on this same harness while we ice climb.


  • Packable harness built specifically for winter alpine application
  • Ultralight hydrophobic construction packs down small, fights ice
  • Speed buckle makes for easy off and on while wearing skis
  • Two webbed gear loops keep ice axes and other tools nearby
  • Four ice clipper spots keep ice climbing screws secure
  • Full-strength belay loop creates peace of mind
  • Item #BLDZ9G5
vari-width Dynex monofilament
none (rabbit-ear tie-in points)
Gear Loops
Ice Clipper Slots
Haul Loop
Claimed Weight
[medium] 3.7oz
Leg Loops
Manufacturer Warranty
1 year
mountaineering, ski mountaineering

Overall Rating

5 based on 25 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 4 reviews
5 Stars - 20 reviews

What do you think about this product?


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5 out of 5 stars

February 13, 2024

Excellent item, got this bunny

Excellent item, got this bunny ear type harness to use over bulky winter layers. It’s super light and pretty easy to put on after staring at the leg loop retention for a couple minutes haha

Qyn H.

Originally reviewed on

5 out of 5 stars

January 22, 2024

Does the trick

Keep in mind, this is an ultralight harness, so there’s really no frills. I wouldn’t want to be hanging from this thing all day, but I do trust it to save my life.

greg s.

Originally reviewed on

4 out of 5 stars

January 19, 2024

Awesome harness

Awesome harness, sizing is a bit odd. Leg loops feel unproportionally baggy for the waist.

Madelyn F.

Originally reviewed on

5 out of 5 stars

January 18, 2024

As advertised, high quality

Incredibly compact and lightweight. Not a harness I’d want to hang in long, but it’s not designed for that. Great for ski touring.

Graham P.

Originally reviewed on

5 out of 5 stars

January 14, 2024

Way more comfortable than expected

I hung from this for about 10 minutes seeing if it would cut my circulation off, and was pleasantly surprised. I'll still use a padded harness for most climbing, but the Couloir UL packs dramatically smaller and lighter for alpine use. The design also can be donned without needing to slip over feet, which is really nice if wearing skis or crampons. Make sure to do some local practice before adventures since the design will probably make your tie-in/belay point about 6" higher on your torso than a conventional harness. I was able to do everything normally, my hands were just in different spots and I had to adjust Prussik and ascender strokes for some operations.

Patrick L.

Originally reviewed on

3 out of 5 stars

January 13, 2024

Lightweight, lacks features

Ultra lightweight, but not hazing adjustment at the thighs is a bummer

Arnaud F.

Originally reviewed on

5 out of 5 stars

December 17, 2023

Very impressive

Rappel and ice climb TRS with it and it works great. I thought it would have been uncomfortable but it did it with no issue. Very Impressed by that product. It takes so little place an accomplish so much.

jean-francois b.

Originally reviewed on

4 out of 5 stars

December 6, 2023

Good harness light and compact

The harness is very well designed, strong and incredibly light. The only set back is the lack of padding which can get uncomfortable without proper pants


Originally reviewed on

5 out of 5 stars

December 5, 2023

Super light and compact

Packs down smaller than your fist and weighs less than a baseball

Chris W.

Originally reviewed on

5 out of 5 stars

December 5, 2023

Good Harness, what we need it for

Harness works sweet for rappels into couloirs and packs up smaller than a can of pop. Helpful to have in the bag with some carabiners just in case one needs it.

Peter G.

Originally reviewed on