I use OR gaitors..

http://www.backcountry.com/store/ODR0024/Outdoor-Research-Verglas-Gaiter-Mens.html

I am sooooo very happy with these gaitors, I have worn them in snow rain and even sunshine. On very cold days I were these even if it is sunny for the warmth.

I even wore these this christmas to get a christmas tree at the farm, it was very muddy and these did the job. They are easy to put on, take off and just to loosen up to get some air if needed.