Whether you're seeking out the highest peaks because they're home to epic backcountry ski lines or if it's just because they're there, the Mammut Masao HS Hooded Jacket will be a trusted companion for your next trek above tree line. The 3-layer DRYtechnology Pro fabric is durably waterproof, totally windproof, and offers high breathability, making it perfect for the times when you need protection from the elements while continuing your high-output journey. The hood helmet-compatible hood provides added protection in windy and snowy weather, while the adjustable cuffs and hem also work to seal in warmth and keep the elements on the outside. If your climb or hike has you heating up, you can release heat using the zippered underarm vents, which are part of a gusseted underarm construction designed to boost your range of motion. And thanks to the harness and pack compatible pockets you'll have easy access to gear and nutrition at any time without having to stop or slow down.