【Product Type】: A summer baseball cap and fan cap designed as outdoor headwear, combining a classic visor shape with an integrated cooling fan for everyday sun-ready wear. 【Cooling Function】: This solar fan hat helps move air around your head and face, making it easier to stay comfortable during warm-weather outings, walks, and outdoor chores. 【Breathable Build】: The mesh sun hat design promotes ventilation, while the long 9.5 cm brim adds extra shade to help reduce direct sun exposure across the forehead and eyes. 【Comfort Fit】: Made from lightweight polyester with an adjustable metal buckle, this cap fits head sizes 55-60 cm and feels easy to wear for longer periods without adding bulk. 【Practical Details】: With USB charging plus solar-assisted power, a digital display, and 160 grams g lightweight build, this outdoor headwear is a convenient choice for warm season and summer use. 【Color】: Black-navy 【Product Dimensions】: 28.5*19.0*9.5cm / 11.3*7.5*3.8in