The Patagonia Down Sweater Vest - Women's is an insulated vest for fall through winter layering. This sleeveless puffy puts 800 fill power Responsible Down Standard down right at the core, for increased warmth while hiking, exploring the city, and more. The NetPlus 100% postconsumer recycled nylon ripstop fabric is smooth for layering over baselayers and under jackets while remaining durable against the outdoors.