Lift Front Welder's Goggles, These Safety Goggles Meet American National Standards Institute, ANSI Z87.1 Requirements, These Goggles Are Perfect For Oxygen Acetylene Gas Welding, Brazing, Cutting Up To 1/2" Thick Material & Torch Soldering With Silver Solder, They Feature Number 5 Shade IR Lens Shields Eye, Indirect Ventilation Keeping User Cool, Soft & Comfortable Goggle Body Fits Over Most Personal Glasses & A Wide Field Of Vision.