Calvin Klein Sunglasses Square In Matte Clear Blue.

LENS - An optical element which converges or diverges light

Grey - A colour often associated with old age (going grey)

Blue - A primary colour

UV - Ultraviolet - a specific wavelength of light invisible to the human eye

Filter - A device used to separate mixtures

Filter - An optical device to remove or enhance particular wavelengths of light.

Italy - a country in Europe.

Calvin Klein - A fashion house founded by renowned fashion designer Calvin Klein in 1968. Based in midtown Manhattan New York.

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