Shellshock Protection Eyes & Ears Combo Protective Ear Muffs 23dB Black. Our most popular combo pairing passive hearing protection with Z87+ rated ballistic glasses. Specifications for Shellshock Protection Eyes & Ears Combo Protective Ear Muffs: Manufacturer: Shellshock Protection Color: Black NRR: 23 dB Quantity: 1 Size: One Size Features of Shellshock Protection Eyes & Ears Combo FF936369 NRR 26dB passive protection Changeable lens system Value combo pricing Package Contents: Shellshock Protection Eyes & Ears Combo FF936369 Interchangeable Lens Kit EXO Passive Earmuff SWITCH Z87+ Ballistic Glasses Shellshock Protection EYE-EAR-COMBO-CLEAR: Eyes & Ears Combo Protective Ear Muffs 23dB Black