97% poly 3% elastane. Hand wash cold. Elastic waist. Burn-out fabric. 30% of all proceeds from this product will go to benefit the Stand Up To Cancer Foundation. SHOW-WP46. MF5 145VT09. 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.