Kippahs

The Kippah, or yarmulke in Yiddish, is the head-covering worn by Jewish men at all times. The tradition to wear a kippah is not derived from any biblical passage. Rather, it is a custom which evolved as a sign of our recognition that there is Someone “above” us who watches our every act.

Today there are many types of kippas: knitted, velvet, terylene, satin, suede, and more.
Often the color and fabric of the kippah can be a sign of adherence to a specific religious movement. Knitted or crocheted kippah, known as kippah seruga, tend to be worn by Religious Zionists and the Modern Orthodox, who also wear suede or leather kippah.