superdown Binx Bikini Top in Black. - size XS (also in L, M, S, XL, XXS) superdown Binx Bikini Top in Black. - size XS (also in L, M, S, XL, XXS) 80% polyamide 20% elastane. Made in China. Hand wash cold. Back clasp closure. Cut-out accent at bust. Item not sold as a set. SPDW-WX335. SDX369 S25. 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.