The Arc'teryx Women's Atom LT Vest is a top-selling sleeveless waterproof safety thermal activewear vest for women. Made with a water-resistant and wind-resistant fabric, this vest offers protection against the elements. It features Coreloft synthetic insulation, providing warmth even when wet. The vest also has zippered hand pockets and an internal chest pocket for secure storage. With its lightweight and breathable design, the Arc'teryx Women's Atom LT Vest is a favorite among outdoor enthusiasts.