Babr-e Bayān[1] (Persian: بَبْرِ بَیان) or Palangina (پلنگینه) is the name of a suit that Rostam, the legendary Iranian hero wore in wars.
Rostam, before going to battle, wore three levels of defensive suits: he first put on a zereh, then a gabr or jowshan, and lastly the Babr-e Bayan.
According to some verses in Shahnameh, Babr-e Bayan had been made out of the skin of a leopard (the name Palangineh refers to this).
[1] The story of the armor is part of the five interpolated tales in Shahnameh that demonstrated the extent of Rostam's popularity.
For instance, one account explains that, when Rostam was 14 years old, he killed a dragon known as Babr-e Bayan in India.