Bikini briefs by Bikini Lab, Printed swim fabric, Cut-out side detail, Tie sides, Brief cut, Hand wash, 95% Polyester, 5% Elastane, Our modal wears a UK S/EU S/US XS. Give your swimwear a lift with Bikini Lab's lingerie-inspired collection. Pulling inspiration from pop art, music and culture, the label brings the bedroom beachside with colour-pop push-up styles, underwire bra tops and adjustable hipster briefs.