Creative NAVY Hands Free Umbrella Headwear Hat For Fishing/ Golf/ Beach Material: Carbon fiber Rib and UV-proof raincloth. Function:protect you from Rain or Sun, for children or adult use; Keep both hands free while protecting your head. Direction:Just unfold the Umbrella Hat and push the white short pillar to the top, then put on it. Unfolded Diameter (Approx.): 55cm / 21.7". Folded Length (Approx.): 25cm / 9.8".