The Nike Women's Aeroloft Running Vest is a top-rated sleeveless hooded high-visibility convertible activewear vest designed specifically for runners. It is made from a blend of polyester and nylon, providing lightweight warmth and breathability. The vest features a removable hood, a full zip closure, and multiple zippered pockets for storage. The high-visibility color ensures that you are easily seen by motorists and other runners, enhancing your safety during early morning or evening runs.