The outer fabric, lining, and filling are all polyester. However, the neck area is puffed up, so it feels warm around both the ears and neck. The brown lines add a bit of impact. I don't remember wearing it outside, and it has been stored in a paulownia box inside a Japanese paper bag. Since it's not down, it will be shipped compressed. Measurements (laid flat): Width approx. 50cm, Length 80cm Color: Black系 (Black-based)