Show Me Your Mumu Em Mini Dress in Right in Green. - size XS (also in ) Show Me Your Mumu Em Mini Dress in Right in Green. - size XS (also in ) Poly blend. Dry clean only. Unlined. SHOW-WD242. MR6 120. 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.