Having so many features like its hollow out mesh, strong wind, USB charging and its easy-to-charge function, charging it just like charging your phone. Hat circumstance can be adjusted as you want.This cooling hat is not only energy-saving, safe but also long-lasting, and it is cool enough to make you enjoy the summer better when you are at outdoor having activities like fishing, climbing and camping.It is constructed of cotton material.The head circumference is 56-59cm. It is suitable for beach, gardening, climbing and traveling.Item Name: Summer Fan HatMaterial: CottonGender: WomenSeasons: SummerFeatures: Safe, Energy-saving, Adjustable Hat CircumstanceSize Details:Head Circumference: 56-59cm/22.0"-23.2" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Hat1 x USB Cable