Quote Originally Posted by Wes P View Post

Cover up, ..................

I hope this helps a little
Excellent information. Thank you.

BUT the "cover up" phrase of your summary is a good example of what causes the mis-understanding.

"Cover up" does NOT mean to also severely restrict the air flow to the body.
Air flow must be maintained......in most reasonable situations.

It is also true that past a certain point.....maybe 100F ambient......that simple sweat and air flow can NOT be counted on to keep you at a safe temperature. It just won't. STOP riding and get out of the heat or get some "supplemental" cooling.