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.