Originally Posted by
Hezz
In addition to all of the good ideas mentioned. You can also put cheap foam earplugs into your ear. This keeps cold air from entering the ear canal and is very light and effective when combined with the usual cycling head wear.
I would recommend doing this if you have problems with inner ear cold sensitivity.
I make ear plugs from pieces of a cotton ball. Toss them after each ride. Accomplishes the same purpose and I think I can hear better. I'll start using the cotton balls as soon as it gets into the 50'5 without any other protection besides my helmet. I add band/hat etc. as it gets below 50.