Astro OTG 3001 Safety SpectaclesContemporary, lightweight unilens offers panoramic vision. Easy and economical lens replacement system. Wide variety of lens tints available include: traditional, SCT®, and infradura® welding shades. Custom imprinting available. Frame Color: Black; Lens Coating/Shade: Anti-Scratch, Hard Coat; Lens Material: Polycarbonate; Lens Tint: IR 3.0; Style: Adjustable Temples; Weight: 0.15 lb.