If the mystery is what is the cutest and most comfortable costume you can choose this year, the answer is this Blue's Clues Blue Adult Comfywear Costume! Perfect for relaxing or partying, this hooded jumpsuit makes you everyone's favorite puzzle solving pooch with a costume that is versatile enough for any fun costume or dress-up party! Made of high-quality materials, you will find yourself making excuses to put on this amazingly fun and simple costume all year round