Description of Outdoor Research Solar Roller Hat This hat’s wide brim offers shade on bright summer days. The fabric has a protection rating of UPF 30+. A drawcord adjustment keeps it secure on blustery days. Features: SolarShield™ construction Supplex® nylon fabric; UPF 30+ Foam-stiffened brim floats TransAction™ headband for comfort and moisture management External drawcord adjustment Removable chin cord with cordlock Avg. weight: 2.3 oz./65 g (size L)