superdown Kourtney Backless Mini Dress in Green. - size XS (also in M) superdown Kourtney Backless Mini Dress in Green. - size XS (also in M) Self: 65% poly 30% cotton 5% spandexLining: 95% poly 5% spandex. Hand wash cold. Hand wash cold. Fully lined. Ribbed knit fabric. Stretch fit. Please note shade is a neon hue. SPDW-WD452. SDD564 U19. 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.