Mike
I just saw this 'Thread".
After driving from Phoenix Az. to London Oh. in over 100F. heat I can assure you that they are unnoticeable. I was wearing shorts and a "t' shirt and did not experience any discomfort.
Also not bad to sit back onto in the heat of the day after the GT40 was left parked in the sun.
Mmmm when will it be finished..
