Let's play a game: what are all the things the letters ACK could stand for? All cool kids? Whatever it may be, one thing that we’re sure of is that we can’t get enough of Rebecca Larsson and Alessandra Scorletti’s swimwear label. Crafted in Italy, ACK specialises in minimal, functional swimwear that’ll look as good on land as it would in water. From tie-dye bikinis to scoop neck swimsuits in a host of vibrant colours, your holidays will be sorted.