Geography question: Why do Arabs always prefer to wear white robes and wrap white turbans?

I. Saudi Arabians choose the long robe (Arabian robe) as the main clothing, in order to adapt to the dry and hot desert environment with little rain all year round. Arabs wrap the headscarf, the role of the hat, summer sunscreen, winter cold and warm.

Two, in the subtropical desert climate of Saudi Arabia in order to create a comfortable microclimate within the clothing, the fabric of the robe will choose those who absorb moisture and dispersion of fabrics are better, such as linen fabrics, silk, cotton fabrics and so on. Most of the colors of the robe choose light colors, usually white, light blue, light green, in order to minimize the absorption of heat. In the style design, from the perspective of air convection inside and outside to consider, the robe's collar and sleeve opening part are relatively large, and to wear loose, inside and outside the air exchange is good for the premise. Wearing such a loose robe, in the activities can play the role of the wind, accelerated air convection, rest is to play the role of the "chimney" to promote the role of the robe within the air exchange.

The Arabian robe is characterized by wide, can cover the whole body, outside the wind blowing to the robe, can quickly jump all over the top and bottom, playing a kind of "chimney effect", the body will be emitted by the moisture swept away. At the same time, because of the human skin are wide robes cover, blocking the direct irradiation of daylight on the body surface, and filled with robes of the air and play a good role in insulation, thus making people feel cool, comfortable.

Third, the Arab turban is a piece of cloth, put it on the head, and then set on a headband fixed. Its color is mostly white, there are other colors. Fabric has the advantages and disadvantages of thick and thin, with the season and conditions.

The headband is made of camel's hair round ring, mostly black, occasionally white, thick and thin light and heavy. Young people like thick and heavy headbands, and then tie a belt, look dashing, handsome.

Some Arab countries, such as Yemen on the peninsula and Mauritania in North Africa, men wrapped around the head of a long white turban, do not wear a headband. Their headscarf in addition to the role of the hat, there are other uses: sleep as a cover, worship as a cushion, wash your face as a towel, buy things as a bag, when the wind in the face to block the wind and sand.

Omani men only cloak the turban, do not wear a headband, the color of the turban has a hierarchy, mostly white or plain, the royal family with red, blue and yellow as the base of the special headscarf, other people banned.

Wearing another small white hat under the hijab is a habit of many Arabs. On informal occasions, they prefer to wear only a small white hat without a headscarf. Egypt, Libya, Algeria and other countries, some men do not use the headscarf, do not wear a small white hat, only wear a red or black Turkish-style tall felt hat. Some people love to wrap a white cloth under the felt hat, more colorful and novel.