Malissa's maillot provides extra support.

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Malissa Dean, 38
Before: "I was a tall, chubby girl who got teased a lot, so I used to cover up," Malissa says. "Not anymore!" But the flimsy, zero-support bra is no match for her lush figure.

After: The stylishly open back of this underwire maillot (Keiko New York, $260) has a strap for extra uplift. "I usually go for patterns and colors because I never thought a black one-piece could be sexy. But I was blown away when I saw myself in this—even my legs looked longer."