It is a sleeveless silk dogi (padded undershirt) of which the migoro (body of the garment) is made using double width cloth and has a tarikubi (v-neck overlap) like that of a kimono (Japanese traditional clothing).
身頃が布二幅分ぐらいの袖の無い、着物のような打ち合わせ（垂領）のある絹の胴着。