A bikini top need not always be the same colour or pattern as the bikini bottoms. Style options include triangle, bandeau, halter, and tankini. The first two styles typically tie around the neck, while the last two have straps that sit on the shoulders.
For those who prefer to cover their mid-section, a tankini top, which fits like a tank top, is a good choice. Pick a bikini top that complements the bottoms, as well as the wearer's body.