Originally Posted by
RFEngineer
So my morning commute has regularly been in the 50s F. I only have regular short sleeve jerseys and one long sleeve thermal jersey (overkill). After being cold for a few weeks, I wore a regular cotton undershirt under my cycling jersey this morning. I was definitely warmer, but I don't really think it's the right solution. Is there an alternative to $40+ cycling "base layers." What should I wear, that is cheap, under my jersey in this temperature?[
Nothing.
You want a wind jacket or vest to go over your jersey. It'll block the wind, fit in a pocket if it gets warmer later in the day, and not need washing as often as something worn against your skin.