Young Brunette Girl Reveals With A Black Scarf

In cold climates, a thick knitted scarf, often of wool, is tied around the neck to keep warm. This is usually accompanied by a warm hat and heavy coat.
In drier, dustier warm climates, or in environments where there are many airborne contaminants, a thin headscarf, kerchief, or bandanna is often worn over the head to keep the hair clean. Over time, this custom has evolved into a fashionable item in many cultures, particularly among women. The cravat, an ancestor of the necktie and bow tie, evolved from scarves of this sort in Croatia.
Religions such as Judaism under Halakhah (Jewish Law) promotes modest dress code among women. Married Jewish women wear a tichel to cover their hair. The Tallit is commonly worn by Jewish men especially for prayers which they wrap around their head to recite the blessing of the Tallit.
Young Sikh boys, and sometimes girls often wear a bandanna to cover their hair, before moving onto the turban. Older Sikhs may wear them as an under-turban.