When overnight hut trips and technical ski mountaineering objectives demand both capacity and specialized gear access, the Black Diamond Cirque 50 delivers as their largest ski-specific backpack designed for serious alpine pursuits. This 50-liter pack excels where safety and efficiency matter most, featuring an externally-accessible avalanche safety pocket that keeps your beacon, probe, and shovel within instant reach without fumbling through your main compartment in critical situations. The versatile A-frame and diagonal ski carry systems adapt to changing terrain, while the quick-deploy PickPocket ice tool system ensures your piolets are ready when the route turns technical. Built with durable 210D nylon and Dynex grid reinforcement, this ski mountaineering workhorse combines a weather-resistant roll-top design with aluminum back panel support and load lifters that handle heavy overnight loads with confidence, making it the go-to choice for backcountry skiers who venture beyond day trips into serious alpine terrain.