Black Diamond Couloir 3S is a harness with a unisex design, perfect for mountain guides with clients, ski mountaineers or climbers who appreciate simplicity. The Couloir 3S uses high-strength polyester webbing and is adjustable with three metal buckles, making it easy to slip on or off while wearing crampons or skis. Equipped with two gear loops and two ice screw loops, so you can get ready for your next mountaineering objective! BD Black Diamond Couloir 3S mountaineering and ski-mountaineering harness