The costumes that appeared during the Heian period had been used for ceremonies in the Imperial court and bakufu (Japanese feudal government headed by a shogun) since then, and the shape of clothing has essentially been the same until today, though "how to wear costumes" and "how rituals and costumes related to each other" had gone through various changes through the years.
平安期に登場した装束はそれ以降も朝廷・幕府等の儀礼に用いられ、着装法や着装する儀式と装束の相関に様々な時代的変化を経たものの、形状等の基礎的な部分に於いては現代に至っても通底している。