Asian conical hat

The Asian conical hat, commonly known as an Asian rice hat, coolie hat (in the UK), oriental hat or farmer's hat, is a simple style of conical hat originating in East, South and Southeast Asia; and notable in modern-day nations and regions of Bangladesh, Bhutan, China, Cambodia, India, Indonesia, Japan, Korea, Laos, Malaysia, Myanmar, Philippines, parts of Outer Manchuria, Taiwan, Nepal, Tibet, Thailand, and Vietnam.
It is kept on the head by a cloth (often silk) or fiber chin strap.
Use.
Asian conical hats are, throughout Asia, primarily used as a form of protection from the sun and rain. When made of straw or other woven materials, it can be dipped in water and worn as an impromptu evaporative cooling device. It is also widely understood in East Asia, most notably Japan, as a symbol of Buddhism, as it is traditionally worn by pilgrims and Buddhist monks in search of alms. They were also worn by the samurai of Japan, where they were known as (travelling hat) or . 
In the Philippines, the "salakot" is more commonly a pointed dome-shape, rather than conical, with a spike or knob finial. Unlike most other mainland Asian conical hats, it is characterized by an inner headband in addition to a chinstrap. It can be made from various materials including bamboo, rattan, nito, bottle gourd, buri straw, nipa leaves, pandan leaves, and carabao horn. The plain type is typically worn by farmers, but nobles in the pre-colonial period (and later "principalia" in the Spanish period) crafted ornate variations with jewels, precious metals, or tortoiseshell. These are considered heirloom objects passed down from generation to generation within families.
The "salakot" was also commonly worn by native soldiers in the Spanish colonial army. It was adopted by Spanish troops in the early 18th century as part of their campaign uniform. In doing so, it became the direct precursor of the pith helmet (still called "salacot" or "salacco" in Spanish and French).
In Vietnam, the ("leaf hat") forms a perfect right circular cone which tapers smoothly from the base to the apex. Special conical hats in Vietnam contain colourful hand-stitch depictions or words while the varieties are famous for their (lit. poem conical hats). These contain random poetic verses and which can be revealed when the hat is directed above one's head in the sunlight. In modern times, they have become part of Vietnam's national costume.
In China, it was typically associated with farmers, while mandarins wore tighter circular caps, especially in the winter.
Similarly in India and Borneo, the plain conical hat was worn by commoners during their daily work, but more decoratively-colored ones were used for festivities. In Sabah, the colorful conical hat is worn for certain dances while in Assam they are hung in homes as decoration or worn by the upper classes for special occasions.
Regional names.
English terms for the hat include sedge hat, rice hat, paddy hat, bamboo hat and sometimes coolie hat.
In Southeast Asia, it is known as (ដួន) in Cambodia; in Indonesia; () in Laos; in Malaysia; () in Myanmar; , and among other names in the Philippines; and in Vietnam.
In East Asia it is called (, literally meaning a "one- bamboo hat") in China; or in Japan; and () or (, )) in Korea.
In South Asia, it is known as () in Assam (India); in Bangladesh it is known as ().