Originally Posted by
caloso
We have temperature and humidity conditions here where you'll literally have frost form on leading edges (toes, shins, hands, forearms) even though it's above freezing. On days like that I don't care to have bare skin showing but it's not so cold that my "junk has frozen solid."
This could only happen if you were traveling at sufficient speed (that is, +20mph,) with temperatures below 40ºF, and a suitable range of humidity. Frost above ambient freezing is a result of wind chill.
All of these conditions could be met with tights. Knee warmers provide absolutely no advantages in performance or convenience.
In this case, you are apparently so fast you need to have de-icing equipment installed, like aircraft.