To show their devotion to Sikhism, many Sikhs follow 5 rules known as the 5 K's. Some Sikhs do not cut their hair and instead wear it up in a turban. Uncut hair is known as Kesh. The other things devoted Sikhs wear at all times are a wooden comb known as Kanga, an iron bracelet known as a Kara, an iron dagger known as Kirpan, and special undergarments known as Kachera.