Bikini briefs by Stella McCartney, Stretch swim fabric, Gold-tone logo to back, Brief cut, Hand wash, 82% Polyester, 16% Elastane, 2% Nylon, Our model wears a UK S/EU S/US XS. The next best thing to nothing at all, Stella McCartneys lingerie and swimwear lines continue the main collections feminine focus. Expect bras, briefs and nightwear in luxe silks and satins, and cool one-pieces in future-fresh fabrications.