asymmetrical one-piece swimsuit
A one-piece swimsuit with an asymmetrical design.
One very common asymmetrical design is a one-piece with only one shoulder strap. This is known as a "one shoulder" swimsuit. Other examples include one side of the swimsuit solely having cutouts, a single diagonal strap link, or one side made out of straps.
Colors, patterns and print swimsuits does not count as "asymmetrical design." Use two-tone one-piece swimsuit instead.