Ray Ban Wayfarer Rb2143 sunglasses are known worldwide as the "Wayfarer II" model.  This model is known for its color variations and flexible spring hinges.  Wayfarer sunglasses is one of the most popular sunglasses model of all time.  Most sunglasses come with glass lenses, and Ray Ban Wayfarer RB2143 with green G15 glass lenses have a great optical purity, and are the signature color and style of the Ray Ban Wayfarer sunglasses model.  Most of these frames come with glass lenses, some are polarized, and some have mirror finishes. 

You may also want to check out other Ray Ban Wayfarer styles, including the Ray Ban Wayfarer RB2151 sunglasses (aka "Wayfarer Square").  If you like this frame, the other all-time classic Ray Ban Sunglasses frame is the Ray Ban Aviator sunglasses.  Both of these frames are prescription sunglasses, meaning that you can have the lenses removed and replaced with lenses that you design, with your own prescription.