Dreadlocks, also called locks or dreads, are matted coils of hair. Dreadlocks are usually intentionally formed; because of the variety of different hair textures, various methods are used to encourage the formation of locks such as backcombing sections of the hair, twisting or a process involving the weaving of the hair with a crochet hook to form knots.
Dreadlocks are associated most closely with the Rastafari movement, but people from many groups in history before them have worn dreadlocks, including the Hindu Shiva worshippers of India, the Maasai of East Africa, and the Sufis of Pakistan.