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Your cart is empty.Spectra lenses pass the American ASTM standard and the European EC Standard. But testing doesn't stop there. These lenses are tested by being shot, stomped, hit with 1/4" steel balls at 400 fps, run over, and even by letting the dog chew them. And that proves one thing, JT lenses meet an even higher standard - the JT Standard. The standard has been lifted even higher to include pure optical style with a fog-resistant coated thermal inner lens. You will not find a better lens with a higher standard of safety anywhere! Features/Options: Thermal Lens: High performance fog-resistant solution for moderate weather conditions where fogging may be a factor. Yellow/Amber Tints: These tints are used in low-light conditions to increase contrast for enhanced visibility. Smoke Tint: The best decision for bright sunlit days. Don't forget to change your lense every year, no matter what. Lenses are replaceable... your eyes are not!