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.