The Black Diamond Couloir is a lightweight harness for skiing or mountaineering.  The Couloir packs down to the sized of a can of soup, and weighing in a 8 oz, the Couloir is extraordinarily lightweight.  The Couloir harness is made of fast drying Nylon, and features quick release leg loops for quick on-off capabilities with skis or crampons on.  Black Diamond has also given the Couloir a sturdy belay loop, two webbing gear loops, and four ice clipper slots for racking up.