Slip on our Soundshield Safety Glasses for a safety solution that covers all four bases: your eyes and your ears. Each set of Soundshield Safety Glasses includes a set of retractable earplugs that are attached to tethers inside the frame. Simply open the hinged doors and pull out the plugs. When you need to answer the phone, you won't misplace your earplugs, and when you're done, simply stow them back into the frame to shield them from dust and debris. The scratch- and impact-resistant polycarbonate lenses absorb 99% of UV rays, making them ideal for indoor or outdoor use. PermaPlug earplugs provide a noise reduction rating of 25 dB. Thick frames provide good side shield protection and durability. Features: SoundShield Patented Technology. Anti-fog, scratch resistant lenses. Retractable, replaceable earplugs. Absorbs 99% of UV rays.