Hats can be functional and/or a fashion statements. My first hat that I made an attachment too was a blue bobble hat knitted by my mother. By the time it was spirited away it was dull in colour and sported a worn out bobble. I was sad as no one admitted to being involved with its disappearance but all knew about it
I have seen this chap several times: he wears a floppy sun hat that is tied under his chin and does remove it on occasions. He rushes with purpose in his step.