Using optical technology developed by NASA, these are the sunglasses that make objects appear more vivid while blocking 100% of UV rays and shading eyes from sunlight. Based on technology designed by NASA's Jet Propulsion Laboratory to protect astronauts' eyes from solar radiation, the lenses block blue and violet rays that impair vision yet allow sight-enhancing green, yellow, orange, and red rays to reach the retina. As a result, objects appear more distinct and distortion is greatly diminished. The frames have adjustable, non-slip silicone nose pads and spring hinges. The lenses meet CE, EN1836 regulations, and ANSI standards for scratch and impact resistance. Includes zippered case, soft pouch, and cleaning/maintenance kit. Not available for shipment in New York. 5 1/4" W x 2" D x 1 1/2" H. (1/2 oz.)