According to 'Genji Monogatari emaki' (the Illustrated Handscroll of the Tale of Genji) and so on, kogoshi was not directly stitched to mo like it is today, and it is understood that a small loop was attached to the end of ogoshi and tied with hikigoshi.
小腰は「源氏物語絵巻」などによると、現在の形式のように直接に縫い付けたものでなく、大腰の端に小さな輪をつけ、引腰をむすびつけていたことがわかる。