The Shtreimel is a Jewish fur hat worn by men on Shabbat and during Jewish ceremonies. It is a cylindrical hat with a wide diameter. Some sects believe that it is worn by married men, while some believe that adult boys wear it, and therefore, post Bar Mitzvah, boys are allowed to wear it.
As it is made from furry material, it is very warm, and it has no brim. However, as compared to taller fur hats, Shtreimel is relatively shallow. The most common type of Shtreimel is made from black velvet with fur wrapped around it; however, there are other types of Shtreimel too.
Menachem Mendel Schneersohn, an orthodox Rebbe wore a white Shtreimel. Further, there is a pointed variant also worn by Rebbes of certain dynasties.