They're scar-ily nostalgic and Krumm looks great on this Nickelodeon Ah Real Monsters Krumm Hat! The Nickelodeon Snapback Hat is an all black hat with a snapback strap that allows you to easily fit most sizes. The Ah Real Monsters Krumm Hat features bright, bold, embroidered artwork on the front of the cap of Krumm from Ah Real Monsters! The Nickelodeon Hat is made of comfortable, durable, and easily cared for acrylic wool material. The Nickelodeon Apparel is the perfect gift for any occasion!