Scary Adult Dementor Costume – This frightening Harry Potter Dementor Costume includes the Dementor mask and robe with chest piece and the hood/mask with mesh see through area. The authentic Dementor Costume is an officially licensed product and is available in size Adult Standard only. Dementors served as guardians of Azkaban and thrive in the darkest places. They are wraith-like creatures covered in dark, hooded cloaks. Dementors are void of eyes and where their mouth should be there is a gaping hole through which they inhale the souls of the living! Very scary!