Generally, in Kanto area, the ratio of the top section and the bottom is two to one: 'kami ichimonnji' (horizontally long strip of cloth put on the top of the surface) is twice the length of 'shimo ichimonnji' (horizontally long strip of cloth put on the bottom of the surface) and 'ten' (heaven, the top section) is twice the length of 'chi' (earth, the bottom section).
一般に関東では「上一文字」の丈が「下一文字」の丈の2倍、「天」の丈が「地」の丈の2倍といったように、上部と下部の比率が2対1になっている。