High-quality materials: aerodynamic ABS shell, multi-density EPS, adjustable chin strap, keep the helmet clean, fresh and odor-free. Double lens design, the inner lens is UV-proof. Can be opened and closed with the inner lens switch. The outer anti-fog
visor is removable.Adjustable ventilation: multiple safety holes on the top and back can be used to close the air circulation inside the helmet when not needed.Removable and washable lining: The lining is removable and washable, easy to remove, easy
to wash, no deformation, ventilated and dry, breathable and sweat-absorbent!