Bikini briefs by Stella McCartney, Plain swim fabric, Color-block design, Hipster style, Brief cut, Hand wash, 84% Polyester, 16% Spandex, 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 collection's feminine focus. Expect bras, briefs and sleepwear in luxe silks and satins, and cool one-pieces in future-fresh fabrications.