This glasses number "581", is the aviation section of main products, and will serve as a air show special brigade flying goggles. "581" flying glasses, in strict accordance with the "to strengthen the function, pay attention to quality, the pursuit of beautiful, to build the international first-class brand" the instructions of the requirements, design and manufacture according to the standard. Lenses in U.S. POLAROID POLAROID original thickening polarization riot lenses, wear resistance, impact resistance, can eliminate 97% of reflected light and scattered light, effectively cut off 95% of the ultraviolet ray, radiation protection, fatigue resistance, better protect the pilot's eyes, and vision. Picture frame for aluminum alloy material, high hardness, flexibility is strong, durable, good tolerance, wear comfortable. The new glasses frame has three colors: black, grey, gold. Both male and female, regardless of size.