I bought this hat after I went to the lake for the first time in years, and forgot to put sunscreen on my earlobes.  After I developed blisters on my ears (OW) I decided I needed more protection.

I can mow my lawn in the summer heat and my head stays fairly cool.  It does wick away the sweat too so sweat stays out of your eyes.

The chin strap is a little annoying until you get used to it.

Note that if you have a big head like me it will be a snug fit even with the drawstring fully loosened.  If you have a freakishly large head it may be too small for you.