According to wafuku (traditional Japanese clothes) glossary, there were two types of ho (robe or jacket): hoeki no ho (robe with sides being stitched) for civil officers and ketteki no ho (robe without sides being stitched) for military officers.
上衣である和服用語集には脇の縫われた文官用の縫腋袍と、袖付けから下が縫い合わさせておらず、脇が開いている武官用の闕腋袍とがあった。