The outer shell of the Mt Elliott Insulated Waterproof Jacket is a 100% seam-sealed 10k/10k waterproof/breathable 2-layer fabric. It’s insulated with 133g in the body and 100g in the arms of PrimaLoft© Silver to keep you warm even on the worst winter days. The hood is removable and insulated, plus we included a balaclava (hidden in interior back neck pocket). The collar is lined with brushed tricot and the comfort cuffs have thumb holes so it can work as a glove liner. Plus we integrated the powder skirt to make this a solid jacket for hitting the slopes or the windy cities (I’m looking at you, Chicago).