Nike Aeroloft 800 Running Vest in a sleek black finish provides lightweight warmth and breathability for high-intensity training. This technical piece features 800-fill down insulation with laser-cut perforations between the baffles to allow excess body heat to escape. The ripstop shell offers wind resistance, while the elasticized armholes and hem ensure a secure fit during movement. A full-zip front with a mock neck collar adds extra protection against the elements, and reflective details enhance visibility in low-light conditions.