A bright and stylish straw hat for your vacation mode with UPF 50 to boot. FEATUERS: Unique treated paper and polyester blend Omni-Shade? UPF 50 sun protection 4" brim Lightweight Omni-Shade? Omni-Shade? blocks Ultraviolet A and Ultraviolet B rays (UVA and UVB) helping to prevent sunburn and long-term skin damage.