The Nike Women's Aeroloft Flash Running Vest is a popular choice among women who want a sleeveless high-visibility safety packable activewear vest. This vest is designed to provide warmth and visibility during outdoor activities. It features Aeroloft insulation, which provides lightweight warmth without adding bulk. The high-visibility design ensures that you can be seen in low-light conditions. The vest is made from durable and breathable materials, allowing for comfortable movement. With its packable feature, you can easily fold and store it in your bag when not in use. Whether you're running, cycling, or hiking, this vest is a stylish and functional choice.