strong contrast and wide field of vision  . the smith proxy snow goggles combine the wide field of vision of a spherical lens with the contrast enhancement of chromapopâ„¢ technology. the elegant frame ideally hugs the face and improves the peripheral field of vision. perfect helmet integration with smith helmets and the airevacâ„¢ venting system are the reason for a fog-free lens and clear vision.chromapopâ„¢ sun black lenssmith's chromapopâ„¢ technology helps you see details and colours more clearly, far beyond natural capabilities. chromapopâ„¢ filters out two specific wavelengths of light that cause colour confusion. so the lens delivers more accurate detail, colour fastness and unparalleled clarity.the grey base tint of the chromapopâ„¢ sun black lens is perfect for days with bright blue skies. it reduces dazzling light and sun rays for optimal visibility and performance.transmittance of visible light: 12 %