The Cirque II Pants are Outdoor Research's best-selling, most reliably durable soft shell pants for alpine climbing, backcountry touring, and mountaineering. These are purpose-built for the 4-season athlete with a weather resistance, stretchy, breathable exterior, and amplified with a thermo-regulating ActiveTemp™ treatment on the waistband to regulate your body temperature and keep you cool, dry, and comfortable. Loaded with technical performance details, the Cirque II Pants have a harness-compatible waist, reinforced scuff guards, and wide enough to accommodate larger boots for mountaineering, ski touring, and snowshoeing. Trust the Cirque II Pants on your next mountain adventure and they’ll be an instant staple on your pack list.