The helmet is plenty warm without a hat or beanie except when it is really blowing a storm, then, its your face that gets cold. I use a thin neoprene ski mask that I can pull the helmet over. If its not too cold, the hat can be worn around the neck and the mask pulled up as needed. With the mask, goggles and helmet there is zero cold exposure. Very warm and dry. Just pull the face shield under the chin between runs if the chairlift is sheltered. Can Look a little gangster, but is a versitile, lightweight solution that does not have the bulk of a knit beanie.