JIAHGStraw Fedora Hat for Kids Boys Girls Vintage Trilby Panama Hat Breathable UV Protection Children's Straw Sun Hats Packable Beach Cap for Travel Seaside Holiday

This children's hat actually fits my very small head although it's a bit snug. It's structured and the shape isn't easily squashed. There's a string inside for tightening the size in case it's too big but I don't need to use it. Looks very cool and stylish.

This says one size so in my opinion it would be reasonably to expect that it would fit a child age maybe 4-8 and possibly a couple of years either side. Firstly, tiny on my 10 year old. So tried it on my 6 year old, also tiny! I'd say size wise this would probably suit around age 2-5.