Ray Ban Aviator Sunglasses 3025 004/51 Gunmetal/Brown 58MM Authentic. Ray-Ban Aviator Gradient sunglasses encompass the teardrop shape that started it all. Originally designed for U.S. aviators, the Aviator Sunglasses design has become an icon. The gradient lenses are nicely toned and give a cool effect to what is considered the sunglass that shaped entire cult movements. Wear RB3025 Aviator Gradient sunglasses with a gunmetal frame and lens treatments including crystal Polarized Sunglasses crystal brown gradient.