A scarf is a piece of fabric, often long and narrow, usually worn on or near the head, for warmth, fashion, cleanliness, or religious purposes.
In cold climates, a thick knitted scarf (often of wool) is often tied around the neck to keep warm. This is usually accompanied by a warm hat and heavy coat.
The craft of knitting garments such as scarves is an important trade in some countries.
In drier, dustier climates, or in environments where there is a lot of airborne contaminants, a thin scarf 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.
As well, religions such as Islam promote modest dress among women; many Muslim women wear a headscarf often known as a hijab, but more correctly called the khimar.
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