The Wind Spirit Armour is a set of armour is as thin as a cicada’s wing, extremely soft, and has an adjustable size. After wearing it, even a Legend rank expert wouldn’t be able to easily break through its defense. Their attacks would even be reduced by least ninety percent. Furthermore, because of its light nature, it can be worn under one's clothing and not be noticed by others.
This was one of the items found by Nie Li in the cave of the Black Spring. It was inside one of the Interspatial Rings on the remains of the six legend rank experts. He immediately put this armour on.