The Iron Man Mark 42 suit from Iron Man 3. The MK 42 (XLII), was the forty second suit and was one of the many newly built suits created by Tony Stark. The suit is well known for it's special ability to fly in separate pieces and wrap itself around Tony's body. Piece by piece through a "state-of-the-art" computer chip, that was implanted in his left forearm, which enables him to mentally communicate with his armor.