Retro vintage straw beach bum hat, tropical flowers, tiki bar style!

Retro 70s vintage beach bum hat - this is cute, and strangely comfortable, it's obviously a piece intended to be worn, rather than just a party hat or decoration. It's 24" around the inside the inside crown of the hat.

The flowers are made of sisal rope or something similar, and the hat itself is straw or grass cloth? We were told this was actually from Acupulco, though it's sort of tropical island style!