What Our Gearhead(R) Experts Are Saying: "This jacket feels like a perfect balance between packable and protective. It's light enough for long days but still has that bomber AK GORE-TEX build that keeps you dry no matter how nasty the weather gets."When winter brings storm days and bluebird laps alike, the Burton AK GORE-TEX Upshift Jacket is ready for all of it. Built with a GORE-TEX 2-layer membrane, it keeps us dry and comfortable when conditions turn, while the Living Lining tech adapts to our body temperature to prevent overheating or chills. Fully sealed seams and a slim fit keep the jacket streamlined and protective without bulk, making it easy to layer underneath when temps drop. Mesh-lined underarm vents let us release heat after a long bootpack, while the zip-out powder skirt and helmet-compatible hood lock out snow when we're charging through deep powder. With smart pocketing-including an insulated media pocket to help preserve phone battery life-the Upshift has all the details we need to stay out from first chair to last lap.