Lincoln Electric Cutting & Grinding Goggles | Shade 3 | Anti-Fog | Anti Scratch| K3118-2 INFARED (IR) PROTECTION  Made from a special polycarbonate to offer IR 3.0 protection for use in grinding, oxyfuel cutting, plasma cutting and more. VENTED RUBBER FRAME  The rubber outer frame provides a secure seal while the strategically placed vents improve airflow to reduce fogging / prevent dry eyes. ANTI-SCRATCH  The lenses are coated with an anti-scratch layer for added resistance versus sharp or pointed particulate. ANTI-FOG  The inside of polycarbonate lenses are coated with anti-fog layer for use in hot, cold or humid environments. ELASTIC HEADBAND  The adjustable elastic headband provides a snug, secure fit. UV PROTECTION - Polycarbonate lens provides 99% UV protection. TRUSTED BY PROFESSIONALS  These safety goggles are used by professional fabricators on a daily basis.