A rag worn by the all-knowing members of ISO (International Socialist Organization) usually red checker-type pattern, sometimes black. It's actually called a keffiyeh but who the fuck cares what it's called? You look like a badass rebel!!!
Ken: Yo Pete, what is that thing strangling you?
Pete: Oh that? It's my new socialist scarf!
Ken" Gee Pete! I didn't realize you were cool enough to be apart of such a beautiful and meaningful display of personal beliefs!