A morphsuit of the character Carnage.
"Morphsuits" are a type of Halloween costume. Morphsuits are thin and usually made from polyester and spandex to fit the shape of the person wearing the suit. Similar to some classic superhero costumes, morphsuits are (more or less) nothing more than a spandex suit that is either all one color or has the design of a character on it (see the Carnage morphsuit pictured on the right).
Gallery
Ghost morphsuit.