83% Polyester, 17% Cotton. Our original extreme weather parka gets an update with streamlined hood details and additional interior pockets. The Expedition Parka was developed for scientists working in McMurdo Station, Antarctica. Whether your next journey is through a frozen urban jungle or across uncharted ice fields, with the Canada Goose Expedition Parka you get performance that is proven at the South Pole each year by the National Science Foundation division of Polar Research. Customize your parka and extend the coverage of your hood with a variety of our interchangeable Hood Trim accessories.