Nike Aeroloft 800 Men’s Running vest NEW, never worn, in perfect condition High visibility neon Extremely light: 6-7oz Can be packed and compressed into the front pocket, which doubles as a stuff sack The main fabric of the body of the vest is made from a soft, fine grid ripstop fabric which has a DWR (durable water repellent) finish. This fabric makes up both the inside and outside of the body. The baffles, which stop and give way to non-insulated sections at about the navel on both the front and the back, are about 1.5 inches tall and are filled with 800-fill goose down. In between each baffle are small, perforated lines which are small enough to not negate the insulation but also help with moisture management and temperature regulation.