Today was pretty cold. 0 C, -4 with wind chill. I overdressed a bit, I should have just worn the long sleeve Champion C9, the cotton on top was too much, had to take it off halfway through. Same story with the legs, tights and thin running pants over that. I had to roll the pants up once I turned and didn't have to fight the 30 kph wind...Lesson learned though, tights and single top layer for down to 0.