Question

If air is bad conductor of heat why do we not feel warm without clothes?

Answer 1

Air maybe a bad conductor, but it still is a conductor after all, and conducts some heat, which makes it hot or cold. It is not a perfect insulator, hence it can conduct some amount of heat.

Answer 2

Answer:

This is because when we are without clothes, air carries away heat from our body due to convection and hence we feel cold.