Over time chofuku gradually changed into sokutai, and with the change, chofuku came to be regarded as more important than before changing its role from the normal working clothes for government officials to the ceremonial dress and formal attire.
時代を経ると次第に束帯へと変化していき、それに伴い、官人の勤務服から儀式の際の式服や正装へと地位の昇格が起きた。