The Nike Women's Aeroloft Flash Running Vest is a popular choice among women looking for a sleeveless lightweight safety thermal activewear vest. It is made from high-quality materials that provide excellent insulation and protection against the cold. The vest features Nike's Aeroloft technology, which provides lightweight warmth and breathability. It also has reflective details for enhanced visibility during low-light conditions. With its stylish design and reliable performance, this vest has received positive reviews from customers on Amazon.