Slim rectangle shape polarized flip up that clips onto rectangle shape prescription glasses. Measure your glasses width x height. It is best to add about 2mm's to the height of the flip up height to accommodate for how the flip up clamps onto your glasses. It is usually okay for the flip up lens to be a little wider or higher than your glasses, it will just overlap a little.
One Lens 62mm Width x 40mm Height
Total Width 140mm x 40mm Height
For our international customers, this style can be purchased from our Ebay store at this link Slim Rectangle Polarized Flip-up Sunglasses.