This is an authentic farm girl's sunbonnet from the 1930's, in a calico print of tiny flowers (an adult woman could wear it if she had a very small head). I measured the circumference of the bonnet where the brim is attached and got 21". It 's in excellent condition with no stains or damage of any kind. It would be great for a Halloween or theater costume. I have 2 other vintage sunbonnets listed as well.