Waterproof, windproof and breathable Fully seam-sealed Allied down, 60/40, 480 fill power Take on the great outdoors in the Helly Hansen Aden Down Parka. With a water and windproof construction, an Allied down filling provides that warm and cosy feeling that will keep you snug even as you battle the elements. A removable faux-fur hood makes for a classic aesthetic, making the Aden the perfect marriage of form and function.