I bought this as a gift and had it sent to my mother.  They say it is gigantic.  I know there is one size, but the photo looks fashionable and adjustable and not just a huge generic sunhat.  Disappointed.  It will be a pain to explain to 90 year old dad that he has to pack it up for UPS.  I assume I can arrange to have it picked up at their house from my end if another family member doesn't want it.  Looks great in photo.