In Greek mythology, the Shirt of Nessus, Tunic of Nessus, Nessus-robe, or Nessus' shirt (Ancient Greek: Χιτών τοῦ Νέσσου, romanized: Chitṓn toû Néssou) was the poisoned shirt (chiton) that killed Heracles. It was once a popular reference in literature. In folkloristics, it is considered an instance of the "poison dress" motif.[1]