These bikini briefs by ASOS Collection have been made in a stretch swim fabric. The details include: a low-cut, hipster rise, a double frill trim and a full brief back. ABOUT ME Fabric: 80% Polyamide, 20% Elastane. Lining: 100% Polyester. Size UK 8/ EU 36/ US 4 centre back to fold measures: 20cm/8in.