Axiom™, Spectra¿, and Elite¿ lenses pass the American ASTM standard and the European EC Standard. But testing doesn"t stop there. We shoot them, stomp them, hit them with 1/4" steel balls at 400fps (feet per second), run over them, and let the dog chew them. And that proves one thing, JT® lenses meet an even higher standard - JT® Standard. With a fog-resistant coated thermal inner lens that can be cleaned with a JT® micro fiber cloth, the standard has been lifted even higher to include pure optical style. From our Gradient lenses to our Prizm¿ thermals, you will not find a better lens with a higher standard of safety anywhere!