I have recently received my Running Hat and upon receipt my wife grabbed it and decided to use it for her daily run and triathlon class.
I finally got my hands onto the hat this weekend and use it for a wet and windy half marathon. I was initially concerned that it would be blown off but its clever strap system kept it firm on my head. The lightness of the cap meant I did not notice I had it on but it was there to keep the rain off.
The material and lazer cut holes worked great to release heat but not to much so I did not get a cold head when running. A firm favourite in my caps and will use ti this weekend when am racing again. (Just need to work out how to hide it from the Mrs)