On Tuesday, December 25, 2018 at 11:53:19 PM UTC-6, wrote:
As we know, flying in wave with the sun shining, much of the cockpit stays reasonably warm, but the feet, down in the shade, get cold.

From this month's Soaring mag, a long article on how cold is perceived and ways to manage it
http://www.danlj.org/~danlj/Soaring/...management.pdf