The Nike Women's Aeroloft Flash Running Vest is a sleek and functional sleeveless windproof thermal vest that is perfect for running in low-light conditions. It is made from lightweight and breathable fabric with Aeroloft insulation, providing excellent warmth without weighing you down. The vest features reflective details for enhanced visibility and safety during nighttime runs. It has a stand-up collar, zippered hand pockets, and a drop-tail hem for added coverage. The Aeroloft Flash Running Vest also has a slim and athletic fit, allowing for unrestricted movement. With its stylish design and innovative features, it is no surprise that this vest is one of the most wished-for items on Amazon.