Newisland Anti Dust Wind Ski Outdoor Sports Half Face Mask Filter Material soft, comfortable wearing, feel is good, dustproof, thermal effect is very good According to the person face design, keep out the bridge of the nose the following part, the bridge of the nose department have aluminum sheet fixed, to prevent the slide. Mouth have ventilation holes, the magic stick fixed. Size:one size fit all Motorcycle Bicycle Cycling Racing Bike Ski Half Face Mask