In pertex174 quantum gl fabric with a high quality goose down lining it39s light soft and packable yet super warm meaning it39s beyond ideal for all light fast mountaineering ski touring ice climbing adventures and a whole lot more with countless features to tailor the fit to your needs plus details designed for maximum practicality it truly earns its place on any adventure allied featherstarted in 1987 with a 12 000 square foot facility in vernon california allied feat