ISA BOULDER Lines Bikini Top in Metallic Silver. - size L (also in M, S, XL, XS) ISA BOULDER Lines Bikini Top in Metallic Silver. - size L (also in M, S, XL, XS) Self: 75% nylon 25% elastane Lining: 90% polyamide 10% elastane. Hand wash. Back tie-up closures. Unpadded cups with underwire. Satin fabric with woven overlay fabric design. Item not sold as a set. IBOU-WX9. SS25 WST04.