The Nike Women's Aeroloft Running Vest is a top choice for women looking for a lightweight and breathable insulated vest for their running sessions. This vest is made from a combination of polyester and nylon, providing both comfort and durability. It features Nike's Aeroloft technology, which provides lightweight insulation to keep you warm without overheating. The vest also has a slim fit and a full zip closure for easy on and off. Whether you're hitting the pavement or the treadmill, this vest will keep you comfortable and stylish.