SAZAC Dinosaur Kigurumi Halloween Costumes Material: Fleece (100% polyester). Imported 100% Original from Sazac the creator of Kigurumi in Japan. (NEW) Adults Kigurumi are One-Size-Fits-All. They are made to be loose fitting and will fit anyone at least five feet tall. Kids Kigurumi come in two sizes - 43 and 51. 43 (110cm) is perfect for 2 to 5 year olds, while 51 (130cm) is best for 5 to 9 year olds. New "Adults XL" Size for those 6 feet tall and beyond. Ultimate Loungewear: Thanks to their relaxed fit, slipping on a Kigurumi is like diving into a pajama paradise!