Product name: fan hatProduct material: cloth + plasticSunshade usb charging fan hat 。Hat circumference: adjustable (55-60CM)A golf cap that has a mini fan cooling the face.Function: sun protection, ventilation, with fan, sunshade.Applicable scenarios: sports, leisure, beach, travel, shopping, design, outdoor, travel, gift giving, cycling, live broadcast, travel photography.Package includes:1 x Fan Hat Cap(other accessories demo in the picture is not included.)NOTES:1.Please Allow 0.4-0.8 inch Differs Due to Manual Measurement, thanks.2.Dimensions for items may vary slightly lesser or greater than listed depending on style.3.As different computers display colors differently, the color of the actual item may vary slightly from the above images, thanks for your understandingSuitable for sports hiking, mountaineering, camping and leisure.