Huk Puffer Jacket Our Puffer Jacket is built to keep out the cold while keeping in the heat. We use a durable nylon Cordua outer shell, with a Durable Water Repellent finish to keep you protected, even during a cold, light rain. We placed elastic binding on the sleeve cuffs and an adjustable draw cord at the waist to create a comfortable seal. Center front zip and chest side pockets use a heavy zipper that will not jam. For a final touch, to maximize storage, we have an internal top entry pocket for easy access. This jacket gives you a reason to go out when everyone else can't.