Ray ban Liteforce Tech Rectangular Sunglasses in Matte Black P3 Polarised RB4179 601/S9A 62are crafted from an innovative new bio-material semi-crystalline thermoplastic which is currently used in medical implant technology and aerospace. This advanced plastic offers superior lightness for extra comfort whilst also being extremely durable which enables this plastic frame to be constructed in the same way as a metal sunglass. The matte black frame features an intense green P3 Polarised lens which has a hydro-elophobic coating which is resistant to liquid. Rayban’s were originally created in 1936 by Bausch and Lomb after they were contacted by an American test pilot whose eyes had been permanently sun damaged following a balloon flight. He proposed they design a sunglass that would not only look good, but that would also provide protection from the sun’s rays – thus giving birth to the Ray-ban aviator. The aviator proved so successful that Rayban designed another sunglass this time with a plastic frame and in 1952 the iconic Wayfarer was introduced. Rayban sunglasses have been a favourite of many Hollywood stars and celebs since the 1905′s and the brand is now a worldwide name synonymous with the celebrity cool culture. Ray-ban have increased the range over the years to include a plethora of styles so there is a model to suit everyone, both wearable and affordable, it is no wonder Ray-ban is the words number one choice for sunglasses.