Pyramex clear anti-fog top shelf chemical splash goggle with foam padding features: - Body tinted to reduce glare - breakaway headband provides added protection and features quick fit Retainer - Top shelf chemical splash goggle features Generously sized heavy duty body and lens with foam padding for comfort - Special one-way vent allows air to enter while keeping liquids out - scratch resistant polycarbonate lens provides 99% UVA/B/C protection lens technology: clear lens: general purposes for indoor applications that require impact protection - visible light transmitted (380-780nm): 96% - UVA, UVB blocked (200-380nm): 100% - Blue light blocked (400-700nm): 9% - IR blocked (780-2000nm): 18% specifications: - Bridge: not available - lens base: 4.25 Curve - lens size diagonal: 150mm - lens size vertical: 76mm - lens thickness: 2.2mm - Overall Length (lens-tip): 80mm - Overall Width (hinge-hinge): 180mm - PD: 68mm - Weight: 68gm - strap length: 520mm.