The Batwing hood is magic armour worn in the head slot. It requires 50 Defence to wear. It was released as part of the Evolution of Combat. The hood is commonly worn as part of a batwing armour setup for people that are taking part in warbands. This is due to its cheap price compared to its high life point boost.
It is made by using a needle and thread on two batwing, requiring 54 Crafting, and giving 100 Crafting experience.
During the Evolution of Combat beta, the examine text for this item was "Why so serious?" This is a reference to one of The Joker's lines in The Dark Knight.
Pickpockets Edd and Chris both appear to be wearing a recoloured version of the Batwing hood.