Our seamless ultralight down jacket in a feminine model with a hood consists of a unique 2-layer material. The jacket has high-density fabric and is coated with a water-repellent, bionic surface. 90% protective soft down and 10% feathers that create extra warmth. Small air pockets are created by the down, which conserves heat by trapping and holding the warm air. Scandinavian Explorer only uses down that is certified. (By-product of food production.)