"It can be hard to find the right hat for travel as many of them take up a lot of space or get squashed in transit.

The Ponyflo hat can be worn to travel or fits neatly in a bag. The clever cut-out on the back means that you can wear any hairstyle you like including high ponytails and buns and still benefit from the shade of your cap."

https://www.forbes.com/sites/fionatapp/2019/11/11/travel-professionals-recommend-these-40-top-rated-products-to-pack-in-your-suitcase/#122fbf58136c