A half-cup bra and panty set typically refers to lingerie designed with a bra that covers only about half of the breasts, providing a lower cut and less coverage compared to a full-cup bra. The panty would complement this style, often in a matching or coordinating design. This type of lingerie is known for its sexy and revealing look while still providing some support and coverage. If you're interested in purchasing one, you might find them in lingerie stores or online retailers specializing in intimate apparel.