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Black Diamond Couloir

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Size: XS-S

The Black Diamond Couloir is a fully featured technical harness that is lightweight and very packable and is extremely suitable for skiers, glacier walkers and big mountain climbers.

For a fully featured harness the Couloir packs down very small, about the size of an orange. So it can easily be stored in your pack or even a pocket. The lightness is achieved by using a breathable, low-profile vari-width Dynex monofilament webbing that’s ultralight and durable.

The harness an alpine style harness that can be put on when wearing crampons or skis. Adjustment is made with a single speed buckle on the waist and easy adjsut wings.

Other features of note are a patented Infinity Loop for belaying, which is durable, low profile, and eliminates belay-loop-shift when the belay loop seam catches. Four Ice Clipper slots pair with an integrated ice screw slot in each leg loop to reduce clanking during long approaches and flat glacier travel, and two webbing gear loops secure cordalettes, extra carabiners and other essential gear.

The Black Diamond Couloir for many years has been a popular choice for skiers, glacier walkers and big mountain climbers. This 2021 model only improves with the same features and now a much lighter construction.


 Size Waist Leg
XS-S 60-76cm 43-51cm
S-M 69-84cm 48-60cm
M-L 76-91cm 53-66cm
L-XL 84-99cm 58-59cm
XXL 91-112cm 64-86cm


A short video giving a little summary of the harness.


  • 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
  • Colour coded waist and leg loops (inside/outside) to make putting on harness easy/intuitive


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

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