Most editors who attend Miami Swim Week will tell you the same thing: There’s only one rule when you’re hobnobbing down south. What happens in Miami, stays in Miami. Why? Because south of the Mason-Dixon Line, the parties are big, the bikinis are small and the cocktails are gratis. We assure you, it’s a winning combination. This year, despite all the hullabaloo about Mercedes-Benz backing out, swimwear designers rallied the troops and threw a four-day event that had all the late-night debauchery and show-stopping suits we’ve come to expect from seasoned pros like Mara Hoffman to emerging brands like Chromat. In case you missed all the action, here’s a quick rundown of the top trends on the runway at Miami Swim Week. As for what went down off the runway, that’s our little secret.