Show Me Your Mumu Go To Sweater in White,Red. Size M, S, XL/1X, XS. 64% acrylic 36% nylon. Made in China. Machine wash cold. Looped knit fabric. Item not sold as set. SHOW-WK179. MM4-4938. 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.