Show Me Your Mumu Clurb Crop Top in Green. - size XS (also in L, M, S, XL) Show Me Your Mumu Clurb Crop Top in Green. - size XS (also in L, M, S, XL) 100% polyester. Made in USA. Dry clean only. Adjustable shoulder straps. Smocked back panel. Lightweight satin fabric. Item not sold as set. SHOW-WS427. MR2-5380. 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.