A yarmulke, also known as a kippah, is a small, rounded cap traditionally worn by Jewish men and boys. It serves as a reminder of their faith and the presence of God above them. The practice of wearing a yarmulke is rooted in Jewish law and custom, symbolizing humility and reverence. Yarmulkes can be made from various materials, including cloth, leather, or knit fabric, and come in different colors and designs. While primarily associated with Judaism, the yarmulke is also worn during religious ceremonies, such as prayer and bar mitzvahs, reflecting a person's commitment to their faith.