superdown Isadora Maxi Dress in White. Size L (also in M, S, XS). 90% polyester 10% elastane. Hand wash. Fully lined. Pull-on styling. Cut-out styling. Lightweight jersey fabric. SPDW-WD2919. SDD10073 U25. 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.