This premium straw hat offers UPF50+ sun protection and is foldable and packable! This hat is lightweight, breathable and comfortable. Adjust the size of the hat with the cord inside the hat and wear it with or without the easily detachable chin strap. Suitable to wear with various hair styles including a pony tail. Perfect for travel, pool or beach, vacation, camping, fishing, gardening and more! One size fits most women, hat circumference 21.65 - 22.45” Crown 4” Brim 3.7” Hand Wash only