LSPACE X Rails Donnie Bikini Bottom in White,Black. - size XL (also in L, M, S, XS) LSPACE X Rails Donnie Bikini Bottom in White,Black. - size XL (also in L, M, S, XS) 83% micro nylon 17% spandex. Hand wash cold. Pull-on styling. Low-rise design with Brazilian back. Midweight swimwear fabric. Item not sold as set. LSPA-WX2117. LSDOB25P. California-based designer Monica Wise delivers a collection of stylish swimwear that brings a state of opulence to any poolside get-together. Pieces are fashion forward, offering modern designs in luxurious materials that are sophisticated, but also beach appropriate.