Light and Comfortable: This hat with fan is made of mesh acrylic fibers material, It is soft, breathable and not stuffy, and not easy to deform. It's also so lightweight, you won't feel like it's a burden on your head, and it's very comfortable to wear. USB Charging Fan: The hat has a small fan powered by USB charging, frees your hands, and allows you to enjoy cool wind without holding a fan. It's perfect for summer. Long Brim for Sun Protection: The long brim design of sun hat with fan can cover your entire face, protect your eyes from direct sunlight, and prevent your face from getting sunburned and darkened. Adjustable: Baseball cap has an adjustable buckle, you can adjust it to the suitable size and make your wearing more comfortable. Whether you are in brush cut or a high ponytail, It's very easy to adjust so you can put it on and off easily Widely Used: The baseball cap with fan is perfect for the hot summer, outdoor activities, cycling, hiking, walking, golf, baseball sport, travel, fishing, daily life and so on.