Black Diamond Couloir is a technical sling designed for technical or high altitude mountaineering and ski mountaineering. It is a sling that shrinks to the size of an orange and stores easily in a backpack or jacket pocket. Redesigned with a breathable Dynex monofilament webbing in variable width, it is ultralight and strong. The speed buckle at the waist is easy to adjust and the leg loops allow easy donning even with ski boots or crampons. Equipped with two gear loops and an integrated ice screw loop in each leg strap. BD Black Diamond Couloir ski-mountaineering and mountaineering harness