Headdress

Headgear, headwear or headdress is the name given to any element of clothing which is worn on one's head.

Headgears serve a variety of purposes:

Bonnets, as worn by women and girls, were hats worn outdoors which were secured by tying under the chin, and often which had some kind of peak or visor. Some styles of bonnets had peaks so large that they effectively prevented women from looking right or left without turning their heads. Bonnets worn by men and boys are generally distinguished from hats by being soft and having no brim—this usage is now rare (they would normally be called caps today, except in Scotland where the "bunnet" is common in both civilian life and in the Royal Regiment of Scotland).

Caps are generally soft and often have no brim or just a peak (like on a baseball cap). For many centuries women wore a variety of head-coverings which were called caps. For example, in the 18th and 19th centuries a cap was a kind of head covering made of a flimsy fabric such as muslin; it was worn indoors or under a bonnet by married women, or older unmarried women who were "on the shelf" (e.g. mob-cap). An ochipok is part of traditional Ukrainian costume.

Some headgear, such as the crown, coronet, and tiara, have evolved into jewelry. These headgear are worn as a symbol of nobility or royal status. Kokoshnik is part of Russian traditional dress, often worn by nobility.

A fillet or circlet is a round band worn around the head and over the hair. Elaborate and costly versions of these eventually evolved into crowns, but fillets could be made from woven bands of fabric, leather, beads or metal. Fillets are unisex, and are especially prevalent in archaic to renaissance dress.

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Wikipedia