The beoseon (Korean pronunciation: [pʌ.sʌn]) is a type of paired socks worn with hanbok, Korean traditional clothing and is made for protection, warmth, and style. It is also called jokui (족의, 足衣), jokgeon (족건, 足件) or mal (말, 襪) in hanja. According to a book titled Hunmong jahoe (훈몽자회,訓蒙字會) written by Choe Sejin (최세진,崔世珍) in 1527 during the reign of King Jungjong of the Joseon Dynasty (1392 - 1910), beoseon was called "bosyeonmal" (보션말), so it may be called by the name before the time.