Description of Outdoor Research Sombriolet Sun Hat Keep your noggin protected when you’re on the water or portaging to the next entry point. UPF 50+ protects you from intense sun while strategically placed vents and wicking fabric in the crown keep you cool and dry. Piping along the brim edge offers greater wind resistance when a summer storm brews unexpectedly. Features: SolarShield™ construction Ripstop nylon/polyester blend; UPF 50+ Foam-stiffened brim floats Flexible, circumferential piping along brim edge for wind resistance Mesh-lined crown and TransAction™ headband for comfort and moisture management Vents in crown maximize ventilation External drawcord adjustment Removable chin cord with cordlock Avg. weight: 3.1 oz./86 g (size L)