Show Me Your Mumu Rochester Maxi Dress in Blue. - size S (also in ) Show Me Your Mumu Rochester Maxi Dress in Blue. - size S (also in ) Poly blend. Partially lined. Halter neck with tie closure. Tassel fringe trim. Neckline to hem measures approx 60 in length. SHOW-WD259. MS7 567. Mumu is not simply a garment, it is a lifestyle. Spontaneous. Fun. Easy going. Unique. Versatile. Imaginative. It all encompasses the mumu, and a way of life.