I did not ride all that much last winter with my son. This winter I plan on riding much more often. He rides on a seat on my bike so does not have the shelter of a trailer.

I have been thinking about how best to layer him. I am trying to keep in mind that while I am pedaling like mad and generating lots of heat, he is just hanging out enjoying the ride...or freezing. I really have no idea as to how many layers will work for a 3 y.o. passenger.

Also, will my body serve as any bit of a wind break since he is riding behind me?

I would love input from anyone...those who have already been through this and those who are in the midst of it and have thoughts/ideas.
-Liz