Jeogori is the basic upper garment of the hanbok, which has been worn by both men and women. It covers the arms and upper part of the wearer's body. The basic form of a jeogori consists of gil, git, dongjeong, goreum and sleeves. Gil (길) is the large section of the garment in both front and back side and git (깃) is a band of fabric that trims the collar. Dongjeong (동정) is a removable white collar placed over the end of the git and is generally squared off. The goreum (고름) are coat-strings that tie the jeogori. Women's jeogori may have kkeutdong (끝동), a different colored cuff placed at the end of the sleeves. There are two jeogori that may be the earliest surviving archaeological finds. One from a Yangcheon Heo Clan tomb is dated 1400-1450, while the other was discovered inside a statue of Buddha at Sangwonsa Temple (presumably left as an offering) that has been dated to the 1460s.
The form of Jeogori has changed over time. While men's jeogori remained relatively unchanged, women's jeogori dramatically shortened during Joseon dynasty, reaching its shortest length at the late 19th century. However, due to reformation efforts and practical reasons, modern jeogori for women is longer than its earlier counterpart. Nonetheless the length is still above the waist line. Traditionally, goreum were short and narrow, however modern goreum are rather long and wide. There are several types of jeogori according to fabric, sewing technique, and shape.
Read more about this topic: Hanbok, Basic Composition and Design