Ray Ban Wayfarer sunglasses - RB2151 - are known worldwide as the "Square Wayfarer" model.  This model is known for its slightly squared lines compared to the other models.  Wayfarer sunglasses is one of the most popular sunglasses model of all time.  Most sunglasses come with glass lenses, and Ray Ban Wayfarer RB2151 sunglasses with green G15 glass lenses have a great optical purity, and are the signature color and style of the Ray Ban Wayfarer sunglasses model.  

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.