Our winter has been particularly difficult. So maybe this is a matter of anticipating the spring. But the other day I bought a Nike cold weather undergear shirt. I wanted something for riding during the early part of the Spring when the temperature is 50-60 or so. I find that a long sleeve t-shirt gets wet and makes me cold. Previously, I bought a warm weather long sleeve mock. I found that whenever I wore this I froze to death when I was riding. I thought that this cold weather mock would take care of things. I decided to wear it to work because my office is cold. Again, the shirt made me colder. What's up? Shouldn't this shirt make me warmer? Or does it do this only when you are actually exercising and sweating? I was frustrated, thinking that maybe I just threw money away. Or shouldn't I reach this conclusion until I am actually riding my bike? Is it a matter of shelling out the money that Underarmor costs? Or does Underarmor do the same thing?