Geodeulji

Geodeulji is a small piece of white cloth to attach to the edge of sleeves of hanbok, traditional Korean attire. Its inner is back up by "changhoji" (창호지), a type of Korean paper and its width is about 6 ~ 8 cm. "Geodeulji" is attached to "dangui" (a ceremonial jacket) or "jangot" (장옷, a headgear) to cover hands because showing hands in front of seniors was considered not a courtesy during the Korean Joseon Dynasty.
Although "geodeulji" was originally only allowed for "yangban" women (nobility) to use, since about 1900, it began to be used by commoners who could not have a ceremonial clothing like "hwarot" or "wonsam". They put it on their outer "jeogori" (a short jacket) for their wedding ceremony to represent the robe as a formal attire. "Geudeulji" is inwardly sewn at the edge of the sleeves and then is turned outwardly. Even though "geodeulji" was originally used to cover hands, it prevents the edge of the sleeves from getting dirty, so wearers used to change only "geodeulji". In addition, "hansam" (한삼), fabric extension attached to the sleeves of "wonsam" or "hwarot" is sometimes called "geudeulji" as well, because the two are similar in usage. However, "hansam" can cover thoroughly hands unlike "geudeulji".