The Adidas Adicolor Betty Boop Stan Smith model or Adicolor R4 Betty Boop is one of the red series Adicolor shoes. The whole Adicolor number 4 ‘color’ series is full of crazy Adicolor models like the Betty Boop shoe. There is also the G4 model which features Kermit the frog or the Y4 which features Mr. Happy. The Adicolor Betty Boop is popular with whacky women (or men of a certain discourse!).