The Arc'teryx Women's Atom LT Vest is a premium puffer vest that offers exceptional warmth and versatility. It is made with a durable nylon shell and filled with Coreloft synthetic insulation for lightweight warmth. The vest has a slim fit and features a stand-up collar and zippered hand pockets. It is also breathable and moisture-wicking, making it suitable for a wide range of outdoor activities. Whether you're climbing, backpacking, or simply exploring the city, this vest will keep you comfortable and protected.