My chaver and teacher just returned from Israel with a gift for me.
As he said, it's our team hat (Can you guess what we study? Yes, Emet v'emunah).
He has one too of course.
“The heart should be broken; both shoulders would be crushed and heaven and earth would be ground up and yet one must not depart from one’s own." -Rabbi Menachem Mendel of Kotsk
(trans R. Moshe Faierstein)