The North Face Women's Aconcagua Vest is another popular choice for women seeking a sleeveless lightweight thermal vest. This vest is made from a combination of nylon and polyester, providing both warmth and durability. It features a zippered front, two zippered hand pockets, and a stand-up collar to shield you from the cold. The Aconcagua Vest also has a flattering slim fit design that enhances your silhouette. Whether you're layering it under a jacket or wearing it on its own, this vest is a stylish and functional option.