Initially, I had doubts about Narciso Rodriguez’s pearlescent silk frock at Bergdorf Goodman: It looked plastic and stiff. But the innovative, asymmetrical tucks in the front were implausibly slimming! The V-neckline felt very classic, offset by the edgier exposed silver zipper in the back. I could wear this to dinner at Barbetta with my parents and still feel fashionable. 754 Fifth Ave., at 57th St.; 212-753-7300.