Full-Face Helmets Full-face helmets are the most widely used today because they offer the highest level of safety currently available. If you intend to buy a full-face helmet, check first and foremost that it fits firmly but comfortably. Other criteria are good ventilation, an anti-fog visor and aerodynamics. All the full-face helmets in our range conform to the safety requirements of the current test standard ECE 22.05. If you're in any doubt, you can order two different sizes from Louis online and try them out. Louis will take back any item that does not fit or which you do not like.