The Nike Women's Aeroloft Running Vest is a popular choice among women looking for a sleeveless insulated high-visibility packable activewear vest. It is made from lightweight and breathable materials, making it ideal for running and other high-intensity activities. The vest is filled with Aeroloft insulation, which provides lightweight warmth without sacrificing breathability. It has a water-resistant finish to keep you dry in light rain or snow. The Aeroloft Running Vest also has a high-visibility color and reflective details for added safety during low-light runs. It has a slim fit and is available in various sizes. Whether you're training for a marathon or going for a jog, the Nike Women's Aeroloft Running Vest offers both performance and visibility.