The jeonbok is a type of sleeveless long vest in hanbok, traditional Korean clothing, which was worn by military personnel.
[1] The unlined jeonbok, which was influenced by a Chinese coat, was worn as the uniform of the military personnel until the end of the Joseon dynasty when King Gojong proclaimed the 1883's "Attire Regulation Reform".
[1] It became everyday clothing for the military and civil officers after 1883.
[1] The back of the jeonbok is open from the high waist to the ankle-length hem and has open slits at both sides at the bottom for ease of movement.
[1] It does not have overlapped columns on the front side and was worn over dongdari (동다리).