I use a Wickers balaclava from Sierra Trading Post. They have a thin one and another that is just a bit thicker, but still comfortable. I wear the Expedition model when it gets colder. Both of them below 0f. At $8 I've bought several just to have around. Warm and cheap what more do you want.
http://www.sierratradingpost.com/p/,...and-Women.html