Ride the Heatwave Summer of Love. 70% cotton 30% polyester. Made in USA. Machine wash . Front graphic detail. Soft fleece lining. SHOW-WK156. MM3-4725. 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.