The Crossfire® ES5 polarized reader provides a polished style and has a great fit. The sleek framework provides substantial coverage for a variety of environments. Rubber nosepiece for all day comfort. Dual mold, rubber temple grips for better stability. Hard coat polycarbonate lens protects against scratches. Provides 99.9% UVA and UVB protection. Complies with ANSI Z87.1 standards. Polarized glare blocking.