Gidget wishes! The sportiest halter swimsuit of the bunch has a banded top and a snug bottom. More happiness: The higher-cut leg makes those stems seem to go on for miles. Patagonia Obi Boucau halter ...

This teeny bikini comes with strings attached. Pull the angel-hair-thin straps taut to create cleavage. Ralph Lauren Blue Label eyelet Ricky top, $49, and string bottoms, $55, ralphlauren.com Labor ...