Compact and tapered shape for smaller ear canals

maintaining their durability and optimal performance

95 - OSHA Occupational Noise Exposure (US)

Unlike traditional and digital ear protection

Batteries (#312 zinc air)

Macks Therma Fit Foam Earplugs (NRR 29 | Bottle of 40) upsell_flare-earshade Compact and tapered shape forMack's ThermaFit Soft Foam Ear Plugs feel firm out of the package, but therein lies the secret to why many consider these the best earplugs ever. The rigidity of these earplugs make insertion into the ear canal easier than with some competitor's softer foams that can bend and crumple during insertion. After insertion, the PVC foam reacts with your body heat to slowly expand and fill the unique contours of your ear canal, creating a super comfortable,