Kolpik
In Ashkenazi Jewish tradition, a kolpik is a type of traditional headgear worn in families of some Chassidic rebbes (Hasidic rabbis) of Galician or Hungarian dynastic descent, by their unmarried children on the Sabbath (Shabbat), and by some rebbes on some special occasions other than Shabbat or major holidays. The kolpik is made from brown fur, as opposed to a spodik, worn by Polish Chassidic dynasties, which is fashioned out of black fur.