Your kiddo will feel Sonic's speed as they race the world or perhaps just your neighborhood to stop the evil genius Dr. Rob. This Infant Sonic the Hedgehog Halloween Costume comes with a full jumpsuit, headpiece, and booties. Our Sonic Hedgehog makes a great Halloween costume, dress up item, or theme party outfit. Please check the size chart in images for proper fit. Quality and Safety tested. Rubies has been delivering great costumes since 1951.