Cheer on the Notre Dame Fighting Irish in cool comfort with this Iso-Chill Special Games Adjustable Hat from Under Armour. A pre-curved visor and unstructured front conforms to your head for a sleek, low profile fit, making this hat perfect for all-day wear. The Iso-Chill fabric keeps you cool and comfortable, even on the hottest days, so you can focus on cheering on your Fighting Irish.