Over a flannel shirt or under a rain shell, this vest delivers outstanding warmth for your core. The water-resistant 6.5-oz. waxed-cotton shell fabric comes from Scotland’s historic Halley Stevensons, weatherproofing specialists since 1864. Down is the soft under-plumage of waterfowl that keeps then warm in frigid weather. No other insulation can match its lightweight warmth. Our 650-fill power duck down is ethically-sourced. Front patch pockets are lined with knit micro-suede and easy to access. Wool-blend rib-knit collar. Zippered front.