Swimsuit by Wolf Whistle, Pool rules, Scoop neck, Fixed straps, Cut-out design, Low scoop back, Colour-block style, High-cut leg. Founded in 2012, London-based label Wolf Whistle specialises in sleep sets, lingerie and cup-sized swimwear. With some styles designed exclusively for ASOS, the brand's made-you look bikinis help you prep for the poolside, while its nightwear, bras and briefs are finished with luxe satin fabrics and delicate lace trims.