Bikini briefs by Playful Promises, Lined lace, Low-rise styling, Tie sides, Brief cut, Hand wash, 86% Polyester, 14% Elastane, Our model wears a UK 8. London lingerie label Playful Promises, mixes flirty detailing with directional design. Corsets, bras and briefs come in luscious tulle and satin finishes as bandeau bikinis and cut-out swimsuits see retro prints and ruffle trims add to Playful Promises full collection of intimates.