superdown Jessica Bikini Bottom in Black. - size XS (also in L, M, S, XL, XXS) superdown Jessica Bikini Bottom in Black. - size XS (also in L, M, S, XL, XXS) 80% polyamide 20% elastane. Hand wash cold. Side tie closures. O-ring hardware accents at sides. Midweight swimwear fabric. Item not sold as a set. SPDW-WX346. SDX10003 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.