The Arc'teryx Women's Atom LT Vest is a top-selling sleeveless insulated waterproof windproof activewear vest on Amazon. It is made with a durable and water-resistant nylon shell and filled with Coreloft synthetic insulation, providing excellent warmth and comfort. The vest features Arc'teryx's innovative design, which includes a lightweight and breathable construction for maximum performance. It also has a windproof and water-resistant finish, ensuring that you stay protected from the elements. The Arc'teryx Women's Atom LT Vest is a stylish and high-performing option for women seeking a top-quality activewear vest.