The bikini is a two-piece swimsuit that has become a symbol of beach fashion and summer fun. First introduced in 1946, it was named after the Bikini Atoll, where nuclear tests were conducted, reflecting the explosive reaction it had on society. The design typically features a top that covers the breasts and a bottom that sits on the hips, allowing for a more revealing look compared to traditional swimsuits. Over the years, the bikini has evolved into various styles, including the string bikini, high-waisted bikini, and bandeau bikini, catering to different body types and personal preferences. It remains a popular choice for beachgoers and pool enthusiasts, representing freedom and body positivity in modern fashion.