The Marmot Women's Jena Vest is a lightweight and packable sleeveless windproof thermal vest that is perfect for outdoor adventures. It is made from 100% polyester mini ripstop fabric with a DWR (durable water repellent) finish, making it windproof and water-resistant. The vest is insulated with 700-fill-power down, providing excellent warmth and compressibility. It features a full zip front, zippered hand pockets, and an elastic drawcord hem for a customizable fit. The Jena Vest is also lightweight and can be easily packed into its own pocket, making it convenient for travel or backpacking. With its high-quality construction and reliable performance, it is no wonder that this vest is one of the most wished-for items on Amazon.