mandarin collar means: The Mandarin Collar or Mao collar is a smaller, more fitted, standing up collar. The collar is typically 3-4 cm high with the edges not quite meeting at the front. The Mandarin Collar is named after the Mandarin dress that was worn in Imperial China by the Mandarins. This collar is very similar to Nehru collars that are often seen in contemporary Indian men’s clothes. (in Fashion Dictionary)
What else does mandarin collar mean?
Close-fitting, circular standup collar that is usually split in the front. (in Merlin Dictionary)
