ryuusou
琉装 (Ryuusou, "Ryukyuan clothes") or 琉球衣装 (Ryūkyū clothes)
Okinawan traditional clothes of the Ryuyu (Ryūkyū/Ryuukyuu) Kingdom, usually used for ceremonial occasions and Ryukyuan dance. Unlike Japanese kimono, a Ryukyuan dress is not supposed to be worn with an obi.
