In most cases, a drummer and a caller (both on a tower) and dancers conventionally wear yukata (a Japanese summer kimono), but it's okay for general participants to wear ordinary clothes.
伝統的には、やぐらの上の太鼓方、音頭取りならびに踊り子は浴衣を着用することが多いが、一般参加者はカジュアルな平服でも良い。