During the Gion Matsuri in Japan, the traditional garment commonly worn is the yukata. This casual summer kimono is usually made of lightweight cotton, making it suitable for warm weather. Participants, especially women, often accessorize their yukata with traditional obis (sashes) and elaborate hairpieces. Wearing a yukata during the festival adds to the celebratory atmosphere, as it reflects cultural heritage and the value placed on traditional attire in communal festivities.