Classic Earplugs were the first foam earplugs ever. Today, they are still the leading seller across the world because of their outstanding advantages including: Excellent Protection - NRR 29dB; Easy To Use Cylinder Shape; Soft, Low Pressure Foam for All-Day Comfort; Non-Allergenic; Moisture Resistant and Non-Flammable; Yellow for High Visibility

Features
• Classic has tested to be the right size to fit the widest range of ear canals (Mil P37407)
• Its cylindrical-shape has shown to protect better than tapered plugs (British Steel Technical, 1994)
• The only manufacturer to make its own PVC foam, so it can regularly test for optimum and consistent performance. (Human Factors, 1990)