The Nike Women's Aeroloft Running Vest is a popular choice among women who prioritize performance and style in a sleeveless lightweight thermal packable activewear vest. This vest is made from a combination of polyester and nylon, providing both warmth and breathability. It features Nike Aeroloft technology, which uses lightweight insulation to keep you warm without weighing you down. The vest also has a water-repellent finish, making it suitable for various weather conditions. With its sleek design and reflective details for visibility, the Nike Women's Aeroloft Running Vest is perfect for running or other outdoor activities.