SAZAC Flying Squirrel Kigurumi - Adult Costume Material: Fleece (100% polyester). All of our kigurumi costumes are machine washable and can stand repeated cleanings without losing their shape. 100% Original from Sazac the creator of Kigurumi in Japan. Machine washable High quality fiber used in manufacture. Buy from Global Deals Today to be assured of getting an authentic Sazac Kigurumi. Adults Kigurumi are One-Size-Fits-All. They are made to be loose fitting and will fit anyone at least five feet tall. New "Adults XL" Size for those 6 feet tall and beyond.