I’m looking for a base layer that helps keep me warm when the weather is cool, but helps to keep me cool while it is warm. The only thing is that I am not at all knowledgeable about what all is available. Also, I’m really wanting more of a long-john style base layer that is all one piece.
Helly Hansen makes some decent base layers. I had the old school thick blue ones for the dead of winter, and then a much thinner breathable one that would take me through spring and fall.