The Holliday top from Rebecca Vallance has playful polka dots scattered over its raspberry-red base, making for a double-hit of vivaciousness. With long self-tie straps falling from the sides, you can tie up this halterneck style to suit your desired look, making it the perfect piece for nailing carefree vacation style. It's not completely unstructured, though – stretch boning running down the sides helps to define its shape and flatter your bust.
