North by Honeywell T18000 Norton 180 T1800 Series Safety Eyewear with Clear Lens STYLE: Injection-molded lenses and temples are 100% polycarbonate and impact resistant. VENTILATION: Vented sideshields allows airflow and reduce heat build up and lens fogging side protection against impact" MATERIAL: Polycarbonate lens absorbs more than 99.9% of harmful UV light OPTICS: Optically correct 180 peripheral vision