9 protective clothing, protective gloves, protective mittens, protective dress shields for policemen and security men, protective helmets, especially fireproof helmets for firemen, protective helmets, especially shockproof helmets, bullet-proof helmets and blow-resistant helmets, sport helmets, namely, riding helmets, bicycle helmets, motorcycle helmets, and flying-sport helmets, especially glider helmets, para-glider helmets, and light-plane pilot helmets; water-sport helmets, especially kayak helmets, canoe helmets, water-skiing helmets, mountain helmets, mountain-climbing helmets, ski helmets, sled helmets, winter-sport helmets, ski-jumping helmets, ski-flying helmets; recreational helmets, namely, football helmets, hockey helmets, and roller-skater helmets; visors for the above mentioned helmets, protective goggles, recreational eyeglasses