The only thing sexier than a bikini? One that fits exactly right. This is just one of the reasons we love American Apparel’s take on the triangle two-piece. “The design is refreshingly simple,” says Lucky executive fashion director Alexis Bryan Morgan. “It’s completely fuss-free—no padding, boning, ruffles or bows—and the fact that you can adjust the string ties precisely how you want them means it works on most shapes.” It’s available in mix-and-match sizes ranging from XS to XL and in an ever-growing array of colors and prints (including the cherry red version shown above), so the number of possible pairings is endless. All that, plus the suit costs less than a round of beachside tequila sunrises.