The Patagonia Women's Down Sweater Vest is a popular choice for women who want a waterproof activewear vest that also provides insulation. This vest is made from a durable polyester fabric that is both water-resistant and windproof. It features a full zip closure and a stand-up collar for added protection. The vest is filled with 800-fill-power goose down, providing excellent warmth without adding bulk. With its stylish design and superior insulation, it's no wonder this vest is a best seller on Amazon.