Garrett Leight California Optical 's 'Bentley 51' glasses are named after the avenue in Venice Beach - the area where the brand was founded. This grey pair is made from lightweight matte-acetate and the clear lenses can be swapped out for prescription, tinted or UV-protective ones. - - Grey matte-acetate - Non-prescription transparent lenses - Come with a hard case and cleaning cloth - Can be fitted with prescription or UV-protective lenses