Court caps were generally made from black ra (thin silk) covered with lacquer, but there were also metal caps called reikan which were worn at the Sokui no Rei (Ceremony of the Enthronement) and the Choga no Gi (ceremony held on the New Year's Day).
黒い羅を漆で固めて作ったものが一般的だが、即位の礼や朝賀の儀の際に着用した礼冠と呼ばれる金属製の冠もあった。