Maximum Sun Protection with a Down-Under Design. This Titleist Tour Aussie Golf Hat offers a fan-favorite design with stretch material and an adjustable closure for improved comfort and fit. It is UV treated with 50+ UPF to help protect you during summer rounds. Features include stretch material with adjustable closure for comfort and fit, a removable chin strap with an inside pocket for storage, and UV treated material for sun protection of 50+ UPF. One size fits all.