The Arc'teryx Atom LT Vest is a high-quality sleeveless insulated high-visibility packable activewear vest for women. It is designed to provide exceptional warmth and comfort during outdoor activities. The vest features Coreloft synthetic insulation, which retains warmth even when wet. It has a durable water-repellent finish to protect you from light rain or snow. The Atom LT Vest also has a high-visibility color and reflective details for added safety in low-light conditions. It has a slim fit and is available in various sizes. Whether you're hiking, climbing, or skiing, the Arc'teryx Atom LT Vest is a reliable choice for staying warm and visible.