Bikini briefs by Playful Promises, Just add water, Printed design, Low rise waist, Brief cut. 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.