Originally Posted by
Booger1
They (modern materials)work for a while,but you will overwelm it if you are actually riding hard for any period of time.
Maybe it's time for battery operated material,it can swell and contract on demand with a button....
Cashmere wool (from goats, not sheep like merino) loses most of its insulating power temporarily, when it gets both warm and humid, which is what happens immediately before you begin to sweat. No button necessary.