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Equipped with Mammut DRYtechnology and a layer-friendly fit, the Alto HS Hooded Jacket is a do-it-all shell we use for rainy alpine climbs, ski tours, or windy treks. A helmet-compatible hood, high-placed pockets, and two-way zipper create a functional fit under climbing gear or a backpack, while a two-way front zipper and underarm vents prevent overheating during high-output activity.