The Nike Women's Aeroloft Running Vest is a top-rated sleeveless reflective convertible packable activewear vest on Amazon. It is specifically designed for running and provides excellent warmth and breathability. The vest features Nike Aeroloft technology, which uses lightweight insulation to keep you warm without weighing you down. It has a water-resistant finish to protect you from light rain or snow. The vest also has reflective details for increased visibility during nighttime runs. It is lightweight and packable, making it easy to carry and store. The Nike Aeroloft Running Vest has a slim fit and a modern design, making it a stylish choice for active women. Whether you're training for a marathon or going for a jog in the park, the Nike Women's Aeroloft Running Vest is a reliable and high-performance option.