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This insulated jacket features Pertex® Quantum fabric to keep you warm on the mountain, even when the temperature dips. A combination of Mammut Wall and Split Wall chamber construction – filled with 900-cuin-fill-power DRY DOWN – uses layering and offset seams to lock in heat and eliminate cold spots. Down filling on either side of the pockets protects your hands. The internal hand gaiters, hem adjustment and high collar add even more warmth. This layer packs into an external stuff sack for easy stowing and comes complete with seven pockets. The Alps IN Hooded Jacket, crafted in collaboration with Italian design studio Pininfarina, is a practical choice to bring on cold-weather outings.