Umbrella Hat. 1)size:30cmX8ribs 2)steel ribs with elastic band 3)170T polyester fabric 4)can wear on the head, Umbrella Hat. This nylon umbrella hat provides protection from the rain or sun. Wear it to a sporting event or on a picnic or nature hike! Opens to 18"Specificationspromotion rain umbrella hat 1)size:30cmX8ribs 2)steel ribs with elastic band 3)170T polyester fabric 4)can wear on the head ...