Mammut M's Aenergy Hooded Jacket

Take the edge off the windchill in this lightweight and technical windbreaker. Made for everything from summer hikes and alpine climbing to breezy winter ski tours, it packs durability, comfort and breathability into a conveniently tiny package. Offering exactly what you need and not a gram more, its streamlined design includes a helmet-compatible hood, durable stretch forearms, two-way zipper, and secure chest pocket that moonlights as a stuff bag when your jacket’s not in use. A staple for every adventure.