The Nike Women's Aeroloft Flash Running Vest is a top-rated puffer activewear vest on Amazon. It is specifically designed for running and provides lightweight warmth and visibility in low-light conditions. The vest features Nike's Aeroloft technology, which provides targeted insulation and breathability. It has reflective details for enhanced visibility and zippered pockets for secure storage. The Nike Women's Aeroloft Flash Running Vest is highly praised for its performance, comfort, and stylish design, making it a popular choice among women who prioritize both functionality and fashion in their activewear.