Stay warm and focused during your runs with the Nike Women's Therma Sphere Element Running Vest. This vest is made with Nike Therma Sphere fabric, which provides lightweight insulation to keep you warm without weighing you down. It features a quarter-zip design for easy ventilation and a stand-up collar to protect your neck from the elements. The vest also has zippered pockets to store your essentials and reflective details for enhanced visibility in low-light conditions. Whether you're training for a marathon or going for a casual jog, this vest is a great addition to your running gear.