During the Joseon period, two types of military uniforms were used: yungbok 戎服 and gunbok 軍服. According to the later parts of the Veritable Records of the Joseon Dynasty 朝鮮王朝實錄, various state codes, and other writings, yungbok consisted of a hat with horsetail (jongrip) 騣笠, a military robe with pleated skirt (cheolik) 帖裏, a broad waist cord (gwangdahae) 廣多會, and water-resistant boots (suhwaja) 水靴子 while gunbok consisted of a military hat (jeonrip) 戰笠, a sleeveless military overcoat (jeonbok) 戰服 or a sleeveless military overcoat with narrow shoulders (kweja) 掛子, a military jacket with colored sleeves (hyeopsu 狹袖 or dongdari), a military band (jeondae) 戰帶, and water-resistant boots.
To wear gunbok, the highest level of attire of military officials, an official dressed himself in a military jacket with colored sleeves (hyeopsu) 狹袖 and a sleeveless military overcoat (jeonbok) 戰服. Hyeopsu, also known as dongdari, has narrow sleeves as well as side slits and a back slit so that the wearer may move more freely. Over hyeopsu, a military official wore jeonbok, a long and sleeveless overcoat with no closing in front.
*Designated as National Folklore Cultural Heritage No. 121