WHAT SHE WORE: Michelle Trachtenberg in black wrap mini dress and ankle boots

WHO: Michelle Trachtenberg at the at 2012 Masquerade Ball Benefit in New York in October
WHAT SHE WORE: black wrap mini dress with a contrast stripe on sleeves from Parker and two-tone ankle boots from Jason Wu
BUY: Parker Colorblock Wrap Dress at Shopbop or at Zappos
          Two-tone leather and suede ankle boots