I use "AIR WINGS" year round. In cool weather they do keep some wind/rain off you, and in warm weather they can put a lot of air behind the fairing and help cool you down. In this pic they are set for cooling, it was near 100 F. (my GL650 on right) I have been up to 100 mph and they don't have a problem staying put!
Here is a better pic of the mounting position I use. I had them 1" lower but moving them up to this position helps flow more air to my torso because it tilts them up a bit.
I got mine in several pieces as junk and glued them back together back in '09. Still hanging tough despite a few lay downs along the way...
A view from the side...