me, are of direction-adjustment, safety and comfort, stress-free features, according to body physical characteristic. Optional functions: anti-fog/ anti-ultraviolet radiation. Application: tactical training, shooting training, sports, etc. Meet ansi z87.1, en166, mil-v-43511c clause 3.5.10 and mil-prf-31013 clause 3.5.1.1 standard. Us standard packing
