Bags specially adapted for protective helmets; Baseball batting helmets; Bicycle helmets; Catchers' helmets; Chin straps for football helmets; Cloth helmet pinnies for use in sporting events specially fitted for helmets; Crash helmets; Decorative and fanciful items for covering of, and for use in connection with protective helmets, excluding stickers; Diving equipment, namely, helmets; Diving helmets; Football helmets; Goggle retention clips for protective helmets; Head-up displays for use in military and commercial aircraft, namely, fixed and helmet mounted transparent electronic displays for providing aircraft crew members with navigational and operational information; Helmet safety lights; Helmets for bicycles; Helmets for motorcyclists; Hockey helmets; Lenses for welding helmets; Motorcycle helmet face shields; Motorcycle helmet visors; Motorcycle helmets; Optical devices, namely, eye pieces for helmet mounted displays; Protective face-shields for protective helmets; Protective helmets; Protective helmets for boxing; Protective helmets for sports; Protective sports helmet accessories that attach to the helmets, namely, mouth guards, ear pads, throat protectors, chin straps, face masks, jaw pads and eye shields; Riding helmets; Safety helmets; Safety products, namely, reflective helmet skirts; Solderers' helmets; Sports equipment for boxing and martial arts, namely, protective helmets; Sports helmets; Welding helmets