I had the G-Form pads on for 2 hours in the 90 degree heat. They remained comfortable and the G-Form guys assure me that these pads are as protective as much thicker, traditional knee and elbow pads. I'll look for more content on the G-Form pads tomorrow at the Interbike Expo. Apparently, their VP of Innovation has been know to wear G-Form elbow pads while whacking himself in the elbow with a hammer. I'll have video if I see that.
Being designed and made in USA is an additional bonus!