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Black Diamond Couloir

Size: XS-S

Designed for technical big mountain routes, crevassed ski areas, or moderate glacier ascents, the Black Diamond Couloir harness is a compact yet fully-equipped technical harness. Easily packed down to the size of an orange, it conveniently fits into your pack or jacket pocket.


Size Waist Leg
60-76 cm
43-51 cm
S/M 67-84 cm 48-60 cm
M/L 76-91 cm 53-66 cm
L/XL 84-99 cm 58-69 cm
XL/XXL 91-112 cm 6-86 cm

The Couloir has been redesigned to include a lightweight and durable vari-width Dynex monofilament webbing that is both breathable and low-profile. Its waist features a speed buckle with easy-adjust wings, while its leg loops have a diaper-style design for effortless removal and wearing with skis or crampons. Additionally, the Couloir boasts BD's patented Infinity Loop for belaying, which eliminates the common issue of belay-loop-shift and is both long-lasting and low-profile. Its four Ice Clipper slots and integrated ice screw slot in each leg loop reduce noise during lengthy approaches and flat glacier travel, and its two webbing gear loops securely hold essential gear such as cordalettes and extra biners.

  • Redesigned ultralight construction with breathable vari-width Dynex monofilament webbing.
  • Patented full-strength Infinity Loop for belaying, which is durable, lightweight and seamless.
  • Speed buckle and diaper-style design 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.
  • Extremely light, packable and low profile.
  • Color coded waist and leg loops (inside/outside) to make putting on harness easy/intuitive.
  • Unisex.
  • XS-XXL.
  • 135g (M).


  • Gender: Unisex
  • Adjustable Legs: Yes
  • Drop Seat: Yes
  • Gear Loops: 2
  • Haul Loop: No
  • Ice Clipper: Yes (4)
  • Quick Buckles: Yes
  • Weight: 135g (M)

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