We're loving all of the swimwear options that are out there right now; at Miami Swim Week, we've seen tons of different prints, colors, and silhouettes, and with each season brings a fresh crop of new looks to try. However, one bathing suit trend that never seems to go out of style is '50s glam. Just look at the effortless allure of bathing beauties like Rita Hayworth, Esther Williams, and Marilyn Monroe. Not only did they have killer curves and perfectly coiffed hair, but they were undeniably sexy while still leaving a little to the imagination. Modern-day stunners like Eniko Mihalik and Marloes Horst worked the trend for Bergdorf Goodman and Seafolly campaigns, respectively — proving that flirty ruffles, sweet gingham, and sailor stripes can still be hot combos. If barely there bikinis aren't your thing, or you just want to try a more retro look on the beach this season, click through to see all of our '50s-chic swimwear picks.