Summer Beach hat is made of UV protection fabric, Sun ultraviolet ray will do harm to your skin, makes dark spots and accelerate aging. Its large brim helps to cover your face, neck and your ears ,thus protecting your skin from rays. Women beach hat with detachable chin strap holds hat in place, even during windy day, and is easy to attach and detach; An inner sweatband to help wick moisture away and ensure your utmost comfort. There is quality wire built in brim edge to make the wide brim stiff enough to be flipped up or down to adjust the look or coverage. hat circumference 22-25.6" , Large Brim 5.1 inch . You can adjust the size of the hat through the rope inside in the hat. Beach sun hat easy to pack to travel, rolled up convenient to carry and absolutely save lots of space.. It's easy to carry no matter in bag or suitcase for travel or holidays. It is a perfect hat for your travel, holiday, beach playing ,pool, golf, camping, hiking , fishing, picnicking at the park or any other outdoor sports and activities. It also makes a great gift for friend, sister and mother.