As the lightest weight, most packable jacket in the line, the Burton [ak] GORE-TEX® 3L Freebird Jacket combines ultimate performance with a burly design that takes up little space in your backcountry pack. Newly upgraded GORE-TEX® Active Stretch 30D fabric makes the Freebird Jacket even lighter and more packable. Gore’s highest available breathability rating also means the jacket repels heat-robbing sweat vapors faster than any other fabric for total comfort on both the climb up and the ride down. Strategically placed stretch paneling mirrors your every move. Utility chest pockets fit splitboard skins to keep them warm and sticky for that last lap.