This is a UPF 50 Hat for Premium Sun Protection. What is UPF protection? Follow this link for more information! 

The Sun 'N' Sand Villa tweed sun hat is a beautiful big brim style that's not overly floppy. It features a large 4.5" brim that is UPF rated for exceptional sun protection. The crown is 4.5" tall and is finished with a 2" tall black ribbon that comes together in an elegant ribbon on the right side of the hat. The interior is lined with a grosgrain sweatband for comfort.