Stay protected from the sun while repping your Notre Dame Fighting Irish with this Performance Boonie Bucket Hat from Under Armour. Made with Under Armour's signature ArmourVent™ Technology, this hat delivers true breathability in a light, stretchy, durable and fast-drying fabric. The adjustable crown drawcord lets you customize your fit, while UPF 30 sun protection helps keep you shielded from harmful rays.