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Black Diamond Couloir Ultralight

Size: S

The Black Diamond Couloir UL is a super light unisex alpine or ski mountaineering harness.

Weighing in at just 105g, the Couloir UL is the lightest in Black Diamonds Couloir range. Featuring innovative rabbit-ear tie-in points, the Couloir UL allows you to get into your harness without removing any crampons or skis. This super minimalistic harness has a low-profile vari-width Dynex monofilament waist, and highly breathable leg loop webbing which is colour coded from inside to outside to help orientate the harness correctly straight out of your pack.

One thing to note - the Couloir UL does not have any ice clipper attachments, having sacrificed these to marginally reduce the weight even further. However it does still include keepers on the leg loops for ice screws, to prevent them from moving around too much while on a route.


 Size Waist Leg
S 67-84cm 48-60cm
M 76-91cm 53-66cm
L 84-99cm 58-59cm


A short video giving a little summary of the harness.


  • Breathable, minimalistic vari-width Dynex monofilament construction
  • Rabbit-ear tie-in points for a buckle less design
  • Ability to get into your harness while still wearing crampons or ski
  • Two gear loops
  • Colour coded leg loops (inside/outside) to make putting on harness easy/intuitive


  • Gender: Unisex
  • Adjustable Legs: No
  • Gear Loops: 2
  • Haul Loop: No
  • Ice Clipper: No
  • Weight: 105g

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