Crash helmets for cyclists; Crash helmets; Articles of headgear (helmets); Cyclists' helmets; Headgear being protective helmets; Helmets for protection against accidents; Helmets for protection against injury; Helmets for scooter riders; Helmets for use in sports; Protective helmets; Protective helmets for cyclists; Protective helmets for skiers; Protective helmets for sports; Protective sports helmets; Safety helmets; Skateboard helmets; Sporting articles for wear (helmets) adapted for use in a specific sport; Sports helmets