Show Me Your Mumu Tuck In Sweater in Black. Size L. Also in XL, XXL. Show Me Your Mumu Tuck In Sweater in Black. Size XL, XXL. 29% acrylic 25% nylon 23% viscose 20 % cotton 3% spandex. Made in China. Machine wash cold . Ribbed trim. Lightweight knit fabric. SHOW-WK193. MR4-5751. Life is fun, your clothes should be too, which is why best friends Cammy Miller and Cologne Trude founded Show Me Your Mumu: a brand born from friendship, travel, and a love of effortless style, now dressing women for every chapter from weddings to weekends and first babies to forever friends.