Show Me Your Mumu Alpine Sweater in Black. Size M, S, XS. APRES SKI. Cotton blend. Made in China. Hand wash. Lightweight knit fabric. SHOW-WK107. MR1-4774. 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.