18" in diameter across the bottom of hat. Brim is 5.5", head pocket is 4" deep, head circumference from 22"-22.4".
Fun and fashionable. keep your skin and face from UVA/UVB ultraviolet rays. Breathable. Can be folded for storage or packing and you can use water or heat (such as an iron on low or a blow dryer) to flatten.