Lucia One-Piece

It has a plunging neckline (the shape, somewhere between a U-neck and a V-neck, is flattering). Goldilocks straps—not too thick, not too thin. And a deep scooped back. What’s really cool, though, is the fabric: It’s smooth, sculpting, and seamless—and it’s reversible. Sky blue on one side, punchy coral on the other.

• 79% nylon, 21% elastane