This '47 Clean Up Adjustable Hat is perfect for young fans of the Notre Dame Fighting Irish. This '47 Clean Up hat features a relaxed crown and curved visor for a comfortable fit that's perfect for young Fighting Irish fans. Made from garment-washed cotton twill, this hat has a soft, worn-in look right out of the box. With embroidered team graphics on the crown and raised details, this hat is a stylish way to show off your Notre Dame pride.