The Nike Women's Aeroloft Flash Running Vest is a stylish and functional choice for women who want a sleeveless lightweight high-visibility activewear vest. It features Nike's Aeroloft technology, which provides lightweight insulation to keep you warm without weighing you down. The vest is made from water-resistant fabric, making it suitable for outdoor activities in various weather conditions. It has a high-visibility color and reflective details for enhanced visibility during low-light runs. The packable design allows for easy storage and portability.