A **bikini** is a popular style of two-piece swimwear typically consisting of a top that covers the breasts and a bottom that covers the pelvic area. Emerging into the fashion mainstream in the mid-20th century, it is characterized by its minimalist design, which leaves the midriff exposed. Modern variations range from high-waisted “vintage” cuts and sporty athletic styles to the more revealing “string” bikini, making it a versatile staple for beachwear and poolside fashion worldwide.