Imagine yourself humming "Happy Ears" as a little ditty despite the temperature hovering in the teens and the wind blowing hard enough to dump the windchill factor into the negative numbers -- your ears will still be warm at least!  These ear bags are really great!  I have to say, large are VERY large, so unless you rival a favorite elephant character developed by Walt Disney, I would try the medium size. Putting them on takes a little getting used to - it's not hard, but you do have to set them "open", put them open, and then flip them to fit close to the head.  It is easy enough after the first couple times.  These do NOT dampen hearing any more than a regular hat does, and they are much warmer!  The colors are tons of fun, too.