According to the "Ihon Shimeisho," a commentary of Genji Monogatari (The tale of the Minamoto clan) from the mid Kamakura Period, its length was about Kosode (a kimono with short sleeves worn as underclothing by the upper classes) (in other words, the length is close to one's height), made in threefold (with nakabe, a lining cloth attached between the outer material), and a hitoemon (a single design, diamond shaped design such as ones used on a single layered kimono) pattern is used on the lining.
鎌倉時代中期の源氏物語注釈書『異本紫明抄』によると小袖ほどの丈(つまり身長すれすれくらい)で、三重(中倍のある)の仕立てで、裏には単文(ひとえもん。単衣につかうような菱文）の綾を用いるという。