Genuine Japanese silk haori - a short kimono jacket for wearing over a full length kimono. Recently purchased in Japan. I think this is man's haori but it could be work as unisex. 

Olive green silk with a distinctive pattern of white rectangles & circles. Rounded sleeves, partially slit under the arms. Lined with a thin layer of quilting & a dark blue silk lining. Black velvet trim around the collar & chest.