Backpacking Hat Recommendations Wanted

[Mantra Man]

Looking for recommendations on the ultimate backpacking hat.  I have one now but the rear brim hits my pack frame and it is a bit irritating. Would like to find one with a good front and side brim and perhaps a back flap that hangs down the back a ways.   I spend time above 6000 feet in hot weather so sun protection is the most important thing.

All recommendations appreciated!

[Michael aka Mac]

I always use a camo Boonie  military hat. lightweight, waterproof , neck strap, high UV index protection and many have snap buttons for sides and some front and back.

They are not expensive and you can often find them at army navy surplus stores 

the British versions also have fabric that hangs down from the back that protects your entire neck form the sun too