3M™ Peltor Maxim Airflow Goggles 2x2, Gray Anti-Fog Lens. Features advanced dual lens design for excellent visibility and comfort. Tough polycarbonate lenses are set in high impact nylon frame that provides superior orbital eye coverage and a wide field of vision. Vented frames reduce heat and fog while still protecting wearer from sun and finite debris. Easy Lock lens replacement system makes for convenient changes to the 3 available colored anti-fog lenses.