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Black Diamond Couloir Harness

SKU# BDI_11030

The full featured, technical, low profile Couloir Harness has an ultralight Fusion Comfort Construction™ that shaves weight and increases comfort whether on technical big mountain lines, crevassed ski terrain or moderate glacier climbs. Other features include a full strength belay loop, Speed buckle closure for easy on/off when you're wearing skis or crampons, two Ice Clipper clots paired with an integrated ice screw slot in each leg loop to reduce clanking and two webbing gear loops.

Availability: In stock

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  • Redesigned ultralight construction with hydrophobic fabric
  • Speed buckle for easy on/off while wearing skis or crampons
  • Two webbing gear loops
  • Four Ice Clipper slots with ice screw slot in each leg loop to reduce clanking
  • Full-strength belay loop
  • Extremely light, packable and low profile
  • Primary fabric is bluesign® approved
  • The harness of choice for mountaineers and skiers on steep snow climbs, short rappels and technical glacier travel


Average Weight 215g
Made From 210D nylon Mini Diamond ripstop, nylon webbing
Warning Rock and Alpine climbing are potentially hazardous and dangerous. Any person using our equipment in any manner is personally responsible for learning the proper techniques involved and that the equipment used is designed for the application. The purchaser accepts full and complete responsibility and liability for any and all damages and injury that may result from use of equipment bought from Bivouac Outdoor. Instruction should be sought from professionals in the safe use of this piece of equipment. This equipment is designed for recreational use and should not be used for industrial applications.


Fusion Comfort Construction™: Intent on building a harness that would move with the body it protects, Black Diamond designed a triple-weave webbing on the interior of the harness's waistbelt that provides movement-focused technology while maintaining superior breathability, durability and strength. Also featured on the harness's leg loops, this technology offers excellent load sharing, relieving pressure from sensitive points of contact.

Cross section of Fusion Comfort Construction™  showing load sharing, EVA foam insert, lining and shell

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