For colder days spent touring the backcountry, layer up with the Mammut Women's Arctic ML Hooded Fleece Jacket. This fleece zip-up's Polartec Thermal Pro fabrication offers an ideal weight-to-warmth while managing moisture to keep you from getting stuffy during chilly bootpacks or windy ridge traverses. With a low-profile fit, the Arctic layers under shells well without adding unnecessary bulk or restriction or wear it on it's on when it's bluebird but still extremely chilly on the skin up.