You want underarmour.
Lady sailors sneezing a lot?
They are looking for what is called a base layer, that wicks away sweat. There is one thing I found out early when I started cross country skiing. You do NOT want to wear cotton, else you will be cold, miserable, and subject to hypothermia.
Yep. Underarmor boxer briefs. Excellent wicking layer. Then then Duluth Trading or UA heatgear undershirt. I’ll never go back.