(3 of 12) Fashion Week TrendsFrom Marc Jacobs to Zac Posen to Diane von Furstenberg, all the top designers unveiled their spring collections at New York Fashion Week earlier this month. And from all the shows, there seemed to be some common threads. Here, we highlight 12 of hottest trends seen on the runway. Pocket Dresses A look carried over from previous seasons, pocket dresses are a designer favorite. From Diane von Furstenberg’s minidresses to Oscar de la Renta’s prom styles, the look added the perfect amount of laid-back charm.