Tilley or the Kuiu Airmesh boonie.

I wore nothing but Tilley for years. Got the Kuiu one because it was camo and I was hunting a lot in Texas. Rarely wear one of the Tilley hats now, as the Kuiu has better ventilation.

Tilley is at the top of your budget, and has a lifetime warranty that you will never need. My mom wears the first one I bought in 2004 to garden and mow. She probably spends over 100 days a year outside wearing it, not 100 hours.