The mu'umu'u was a popular dress style in Hawaii known for its loose fitting and comfortable style. They were often made with bright patterns often of some type of flower or other Loose Hawaiian Dress Etsy Mumu Collection Mumu ~ In the Pacific, a mumu refers to a loose, comfortable, garment worn by women. The style of the dress is typically characterized by its relaxed fit, flowing design, Women's Hawaiian A Line Short Dress with Back Cutout Hibiscus & Birds of Paradise Black S