Madama Butterfly Wear is a clothing line inspired by the opera Madama Butterfly. The name of the line is derived from the title of the opera, which tells the story of a young Japanese geisha who falls in love with an American naval officer. The line features traditional Japanese-style garments, such as kimonos and OBIS, which are sashes worn around the waist. The OBIS are the four-letter answer to this crossword puzzle.