A kasa (笠) is any one of several traditional Japanese hats.[1] These include amigasa and jingasa.
Grammar and etymology
Kasa is the correct way to pronounce the word when it stands alone. Rendaku causes kasa to change to -gasa when it is preceded by another word specifying the type of hat, as in jingasa.
Kasa shares its etymology with the Japanese word for "umbrella" (also pronounced kasa, but written as 傘).
Types of kasa
A number of different styles of kasa exist. Varieties of kasa were used throughout most all levels of Japanese society.
Some types of kasa include:
Ajirogasa (網代笠): a wickerwork kasa made of shaven bamboo or wood.
Amigasa (編み笠): a wickerwork kasa. An amigasa is a straw hat of the type traditionally worn in some Japanese folk dances.
Fukaamigasa (深編み笠): a deep wickerwork kasa.
Jingasa (陣笠): a type of kasa commonly worn by samurai and foot soldiers. The samurai class in feudal Japan, as well as their retainers and footsoldiers, used several types of jingasa made from iron, copper, wood, paper, bamboo, or leather.[2][3]Jingasa almost always had crests on them.
Rōningasa (浪人笠): typically a conical amigasa with a flat top, often worn by rōnin.
Sandogasa (三度笠): a bamboo kasa for traveling with a wide, flat shape that offered protection from the sun and rain. Favored by sando hikyaku, couriers who regularly traveled between Edo and Kyoto.
Sugegasa (菅笠): a conical, pointed wickerwork kasa made of sedge. This hat shape is called a nón lá in Vietnam or do'un in Cambodia.
Takuhatsugasa (托鉢笠): a Buddhist mendicant's kasa. A woven rice-straw kasa worn by mendicant Buddhist monks, the takuhatsugasa is made overlarge and in a bowl or mushroom shape. Unlike an Asian conical hat, it does not come to a point, nor does it ride high on the head like a samurai's traveling hat, instead covering the upper half to two-thirds of the face, masking the identity of the monk and allowing him to travel undistracted on his journey.