I walk/sprint all year outside and so these get a workout.  Live in pocket or slid over waistband in spring and fall unexpected rushes of  bitter wind.  My go-to for winter be it  minus 15-17 for walks or minus 30 for snow shoveling.  THEY WORK.
One arm of old old pair doesn't hug as tightly in the wind.  Try 'em - They also work well under snow-beanies of all kinds and they help to keep a warm band in place for those extra cold days when the sun and snow and glory of winter beckon..