Stay warm on chilly days wearing the Nano Puff Bivy Pullover by Patagonia. It is crafted with the Pertex Quantum® ECO and Y-shaped Filament technologies that lend a soft feel. This pullover also features the DWR finish and the PrimaLoft® Gold Insulation that offers water resistance and adds warmth. The brick quilting pattern with horizontal quilt lines on side panels stabilizes insulation and provides abrasion resistance. It exhibits a venting center-front zipper with wicking interior storm flap and a zipper garage at chin for added comfort. This lightweight pullover is equipped with Kangaroo-style handwarmer pockets and zippered drop-in torso pocket that doubles as a stuff sack.