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What is a Scarf ?

A scarf, plural scarves, is a piece of fabric worn around the neck or head for warmth, sun protection, cleanliness, fashion, or religious reasons. They can be made in a variety of different materials such as wool, linen or cotton. It is a common type of neckwear.

Uses and types of Scarfs 

In cold climates, a thick knitted scarf (sometimes known as a "muffler"), often made of wool, is tied around the neck to keep warm. This is usually accompanied by a heavy jacket or coat. Also, the scarf could be used to wrap around the face and ears for additional cover from the cold.

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 eyes and nose and mouth to keep the hair clean. Over time, this custom has evolved into a fashionable item in many cultures, particularly among women.

In India, woollen scarfs with Bandhani work use tie and dye technique used commonly in Bhuj and Mandvi of the Kutch District of Gujarat State.

Scarves that are used to cover the lower part of face are sometimes called a cowl. Scarves can be colloquially called a neck-wrap.

Source : Scarf Wikipedia