Intelligent thermoregulation: Features a solar powered fan that automatically regulates the hat's interior climate, maintaining coolness during outdoor activities like fishing, gardening, or sports. Perfect for extended time in sunlight. Complete Sun Shielding: Made with polyester fabric to effectively filter intense sunlight, protecting delicate skin. Ideal for beach outings, picnics, or camping. Breathable and Pleasant Feel: Constructed from lightweight polyester for excellent ventilation and lasting comfort. Suitable for daily wear, commuting, or travel when extended hat use is needed. Comfortable Fit: Includes an elastic band to fit various head sizes, providing a stable fit without sliding. Package includes: 1pc Rechargeable solar fan hat