Currents may also be generated by density differences in water masses caused by temperature and salinity variations. These currents move water masses through the deep oceanâtaking nutrients, oxygen, and heat with them. Occasional events also trigger serious currents. Huge storms move water masses.
Ray-ban and most other manufacturers frames are made from Plastic compounds. Ray-ban used to make all its glasses out of 'glass'. Now it makes its sunglass products out of scratch resistent plastics. Often they will 'feel' like glass but are in fact most usually plastic production.
These aviators are the classic Ray-Ban with a druppy frame shape. The Ray-Ban RB3025 defines the apitamy of what is a Ray-Ban Aviator sunglass. The RB3025 currently comes in three lens sizes: 55mm (small/medium), 58mm (medium/large), and 62mm (large, XL).