O'Neill Bikini Bottoms - O'Neill 365 Unity Tie Side Bikini Bottom - Pink Aop :: Women > Bikinis. Materials: 91% Polyester. 9% ElastaneWomen's bikini bottomsCrafted with 365 Hybrid Jersey Lomellina NAIR fabricLYCRA SPORT certificate guarantees extra stretch and fantastic shape recoveryExtremely long lasting. pill resistant and quick-drying with XTRA LIFE LYCRAMedium coverageAdjustable side tiesReflective logosO'Neill 365: Part of O'Neill's Hybrid collection for performance and style both on and off the board Size: one size,14,10.