Excellent!

Excellent boonie hat! I use this hat to teach middle school PE in southern California and it has performed marvelously. In plus 100 degree weather, clear skies, and UV indexes reaching into the stratosphere, this hat shades my eyes and face and the strap keeps it on my head while counting out pushups and running stairs with middle school kids. I wear this hat for about 9 hours a day and the sun, my sweat, and screaming 13 year olds can't break this thing. In addition, the vents, thicker fabric, and nylon webbing wrap, are professional and really show you care about what you've got on your head.