Dry cleaned by Hakuyosha. I just had it dry cleaned at Mitsukoshi's Hakuyosha in February of this year. I only had the opportunity to use it once after purchasing it. After cleaning, it has been stored in the condition shown in the photos. I remeasured the head circumference with a measuring tape, but please forgive any inaccuracies as it is a layman's inspection. It will be sent in a Hakuyosha white box, placed in a clean plastic bag, and then in a cardboard box. Please refrain from purchasing if you are sensitive to items stored at home. Would it be suitable for formal occasions?