noun
braided hat; woven hat
A traditional Japanese hat made of woven bamboo, straw, or similar material, often wide-brimmed and used for sun or rain protection.
旅人は編み笠をかぶって日差しを避けた。
The traveler wore a braided hat to avoid the sun.
時代劇では、虚無僧が編み笠を深くかぶっている。
In period dramas, mendicant monks wear deep braided hats.
笠 is a general term for a traditional Japanese hat or cap, while 編み笠 specifically refers to a woven or braided variety.
Compound of 編み (ami, 'knitting, weaving') + 笠 (kasa, 'hat'). The exact historical origin is uncertain, but the term straightforwardly describes a hat made by weaving or braiding.