The Arc'teryx Women's Atom LT Vest is a top-rated sleeveless insulated waterproof windproof activewear vest on Amazon. It is designed for active outdoor pursuits in cold and wet conditions. The vest features Coreloft synthetic insulation, which provides warmth even when wet and dries quickly. The waterproof and windproof shell keeps you dry and protected from the elements. The vest also has a high collar and a full-zip front closure for added warmth and coverage. It is made of durable and breathable materials, ensuring comfort and performance. The Arc'teryx Women's Atom LT Vest is available in various sizes and colors, allowing you to find the perfect fit and style for your outdoor activities.