Adjustable Visor - With adjustable band, for most people's head circumference from 18.5"-24". If you feel uncomfortable, please adjust the blowing angle of the air outlet or the head circumference, to achieve the best experience. Ventilated Design - Empty top design allows you to shade while avoiding the sultry overhead, accelerate heat dissipation for maximum breathability. 3 Wind Level & Bladeless Design - Features 3 wind modes, meet the needs of different environments and temperature changes. Upgraded bladeless design, which can prevent hair from getting caught on the fan blades. Portable & Hands Free - Made of superior quality ABS+silicon, it weighs only 8.1oz, so it will maximize the comfort and minimize the pressure of head. Put on this hat, frees your hands and makes you look so cool in this hot summer. Innovative 2-in-1 Design - It combine hat with fan, such a creative design, can protect your face from sun UV rays, while enjoying cool breeze. Perfect for outdoor activities such as tennis, golf, theme park, hiking, running, cycling, gardening, fishing, traveling, etc.