Material: Buckle closure.Lightweight Material Provides A Comfort & Durability. One Size Fits Most : Adjustable Magic Buckle Design On The Back, Free To Adjust The Size Of The Hat,Comfortable Everyday Fit. A simple and elegant low profile design with a variety of styles to choose from, fashionable and trendy, perfect for any outfit, perfect for men and women of all styles. Our Hat Great Choice for Regular Daily Use and Outdoor Halloween Party,Walking, Fishing, Travel, Beach, Vacation, Trip, Hiking, Climbing, Camping, Running, Hitch-hike Travel, Baseball, Cycling, Golf, Tennis. After-sales guarantee：Please Let Us Know If You Have Any Questions Or Concerns,and We Will Be Glad To Assist You Right Away.