Gateway Safety 6966 Cover2 Safety Glasses Protective Eye Wear - Over-The-Glass (OTG), IR Filter Shade 5.0 Lens, Black Temple One-piece polycarbonate lens fits over most prescription glasses Lightweight design, with adjustable length temples for a customized fit Flexible temple tips minimize pinching behind the head Meets ANSI Z87.1+ and CSA Z94.3 impact standards IR filter lenses are for use around light welding, brazing or cutting applications only