The Mammut Women’s Aconcagua ML Jacket is a midlayer jacket for cool weather outdoor activity. Soft, warm, stretchy and breathable so you can ski, climb, hike and more without restrictions. Take on the mountain with Polartec Power Stretch Pro in a full zip jacket that breathes and heats at the same time. Work up a sweat without overworking. Harness and pack compatible plus thumbloops at the cuffs so sleeves stay put.