Shop Women's at RalphLauren.com, the Official Site of Ralph Lauren. Crocheted Halter Monokini - This bohemian-inspired crocheted monokini features a glamorous open back and an alluring keyhole at the center front. V-neckline. Drawstring secures to form a keyhole at the center front. Halter straps secure at the back of the neck and the center back. Removable cups. Classic-cut thighs. Moderate seat coverage. Lined at the cups and the hipster bottom. Shell: 89% polyester; 11% elastane. Lining: 91% polyester; 9% elastane. Hand wash. Imported.