A high neckline on a one piece changes the entire proportion of the suit. It moves the visual focus upward and creates a different kind of flattery than a low or standard neckline. High neck works for different body types than the plunge does. It also works for different occasions and comfort levels. A high neck suit can feel sporty or elegant depending on the rest of the cut. The back treatment matters equally with high necks. A high neck with an open or interesting back creates a different vibe than one that is covered all the way. These are the one pieces where the neckline choice determines whether the suit works for your body and your life.