The Patagonia Women's Nano Puff® Vest is a warm, windproof, water resistant vest made from recycled polyester. This vest provides excellent warmth for its weight and it stays warm when wet. It features brick quilting pattern with horizontal quilt lines on side panels that stabilizes insulation and uses durable thread for abrasion resistance. There are two zippered handwarmer pockets with cleanly finished zipper garages. The internal zippered chest pocket doubles as a stuff-sack with a reinforced carabiner clip-in loop. The Patagonia Women's Nano Puff® Vest, with its drawcord-adjustable drop-tail hem, helps seal in warmth during those cold months.