Whether we are backpacking or just out for a run, having a packable thermal layer is a huge bonus. The Nanga Aerial Down Vest Packable features lofty goose-down insulation and is covered by a ripstop nylon fabric for a lightweight build and abrasion resistance. This insulated vest is packable, so we can store it in a pocket and whip it out when needed. A dual drawcord hem allows us to get the perfect fit, and two zippered chest pockets allow us to store our small items when on the move.