The Arc'teryx Women's Atom LT Vest is a sleeveless activewear vest that is designed to provide lightweight insulation and weather protection. Made with a waterproof and windproof shell, this vest will keep you dry and protected from the elements. The high-visibility design ensures that you are visible in low-light conditions, making it perfect for outdoor activities. The Atom LT Vest is insulated with Coreloft synthetic insulation, providing warmth even when wet. With its durable construction and functional features, this vest is a top-rated choice for women who want to stay comfortable and protected during their outdoor adventures.