Girljew

To the uninitiated, it appears that many hasidic Jews wear round fur hats called shtreimels on Shabbat and holidays, but I must point out that, in truth, there are different hats, with different names. One can often discern which chassidic group one belongs to based on the type of hat and other nuances in garb.

To overgeneralize, there are shtreimels and spodiks. Shtreimels are shorter, wider and somewhat donut-shaped, and are generally worn by chassidic groups that originated in Hungary and Galicia (although some Polish groups do so as well). Spodiks, on the other hand, are narrower, taller and overall more cylindrical. They are made from black fur and are generally worn by chassidic groups originating in Poland. (In recent years, the shtreimels have become taller and more angular, looking more cylindrical and less donut-like.) Additionally, there are less common hats like the kolpik, which looks like a spodik but is made from brown fur.

For simplicity’s sake, we will just refer to them all as the “shtreimel.”
Chabad.org