Heo Jeon wrote 『Sa-ui』 to continue the Bangryeong Sim-ui system proposed by the Namin, and this portrait adequately depicts the Sim-ui system proposed in 『Sa-ui』. The Sim-ui was a Bangryeong collar made from thin white cotton, and the collar, gusset, trim, and cuff were decorated with black silk. The belt was a white silk with black silk wrapped around the edges, which was tied on the waist and hung down. A Chipogwan made from thin black cotton was worn on the head, and blue strings were attached to the left and right and tied under the chin. The shoes were Heukri, which are black shoes without a neck.