Material: Fiber Battery:300mah Size: One Size Color: As shown 1. Breathable mesh cap design for summer, made with high-density mesh fabric, comfortable and not stuffy, suitable for long-term outdoor activities. 2. Built-in high-efficiency solar fan, plug and play without batteries, USB charging design for convenience and energy saving. 3. Multi-level wind speed adjustment function, allowing you to freely adjust the wind speed as to your needs, bringing a cool and comfortable wearing experience. 4. Stylish baseball cap design with an adjustable head circumference strap, suitable for people with different head shapes. 5. High-quality sun-protective fabric, effectively blocking ultraviolet rays and protecting facial skin from sun damage. Package includes:1pcs fan hat hello, guys, thank you for visiting my store.There are so many useful and cheap item in our store. Welcome to visit.Hope you have a nice day!