superdown Callie Zip Front Top in White. - size M (also in L, S) superdown Callie Zip Front Top in White. - size M (also in L, S) 83% viscose 15% nylon 2% spandex. Made in China. Hand wash. Exposed front zipper closure with dual pulls. Ribbed knit fabric. SPDW-WS1423. SDS1917 U20. superdown is a contemporary label offering on-demand, on-trend, on-social apparel. Always on the pulse of the latest styles, superdown is the go-to for aspiring, trendy, fashion-loving babes who are #superdown for anything.