Size Options Available in 4-6 years, 7-9 years, and 10-12 years. Full Set: This costume features a jumpsuit, headgear hat, and gloves for the ultimate Sonic experience! Fancy Dress: Get a Sonic The Hedgehog inspired kids' fancy dress! Comfy Cosplay: Made from 90% polyester and 10% elastane so your little one can be cosy as possible when they're darting around at super speeds! Imaginative Play: Let your child's imagination run wild as they embody their favourite blue character. Iconic Look: Whether it's for Halloween, school fancy dress, or a kids' birthday party, your small Sonic will look the part!