This is a Ninamounah 22ss striped tailored jacket. It's a very cool piece with a power shoulder and dangling strings on the buttons, making it very design-conscious. It's from the Amsterdam, Netherlands brand, and was also featured by Kota Fukami of Our's. Purchased at the elephant for around 110,000 yen, and worn only twice. The size is listed as S, but it has a large fit, so I've set it as L.