While Y2K . Trend may reign on today’s fashion scene, at the Manhattan Vintage Show, attendees are stepping back in time. Special, the 70s was a big inspiration this year. Roberts, for example, made a case to wear a polyester three-piece, which she calls “the signature 70s fabric.” Meanwhile, Laurieann Harbin, a pastry chef, picked up the disco decade TV channel with a super mini dress, wear as a top; flared pants; and boots. “It’s a great kid style; Maybe she’s on her way to the club, but not done yet,” Harbin said.