The Pertex Endurance outer provides protection against storm and spindrift while retaining minimal weight and packsize, and high lofting is provided by the 220g of 96% pure white goose down * Weight:625g; Pertex Endurance weatherproof outer * Pertex Quantum inner saves weight and allows improved lofting * 220g of white goose down with fill power 750 EU 850 US * Water resistant zip provides a seal against the wind and spindrift