Men's balaclavas
Men´s scarves don´t serve for skiing or snowboarding definitely as reliably as men's balaclavas. Those are basically a headgear that protect the whole face of the head against the cold wind and snow. They fit well under the ski or snb helmet so when you wear them you are sure you will have a perfectly protected whole head. In addition, they are often made from functional fabrics that absorb sweat and are breathable.
