The Nike Women's Therma Sphere Element Running Top is a high-performance quarter-zip activewear vest designed for runners. Made with Nike Therma Sphere fabric, this vest provides lightweight warmth and insulation. It features a mock neck for added coverage and thumbholes to keep your sleeves in place. The vest also has zippered pockets to store small essentials. With its reflective details and sleek design, this vest ensures visibility and style during your runs.