Features: Keep cool and dry with this solar power cooling fan hat for men, with quick dry fabric and a 3000RPM rechargeable fan for quick sweat evaporation during outdoor activity. With polyester nylon blend and adjustable 54-60cm head size, this fishing hat integrates solar charging technology to extend battery life. Design for anglers, hikers, and outdoor workers who prioritizing great solution and require heat relief under direct sunlight. Great for fishing trip, hiking trails, or daily commutes, this hat maintain comfortable in high temperature environment with its rapid moisture wicking performances. The classical design combine practicality with style, offering hands free cooling through renewable energy while adhering to sustainable preferences. Specifications: Component: Polyester Fiber, Nylon Product Size: Approx. head circumference 55-60cm/22.04-23.62inch Color: 4 optional color as pictures shown Package Includes: 1PC Solar Power Fan Fisherman Hat note: Please allow 1-2cm error due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color the item.