Models: GS642-14

Lens Material: SuperThin (STG) SuperThin Glass - Provides the absolute crispest optics available

Polarization:  Polarized and Non-Polarized  Lens Material:  Light Weight Mineral Glass Frame Material: Bio Nylon Lens Size:  53

Polarized:  Polarized and Non Polarized Photochromic:  Yes

Serengeti Positano Progressive Prescription Sunglasses Style & Fashion Models: GS642-14SERENGETI POSITANO PROGRESSIVE SUNGLASSES Using only the highest quality injected Nylon TR90 for superior durability, Anteos ultra thin frame has the typical assets of our Slim models : it has the added benefit of being exceptionally light, chemically resistant and extremely comfortable. Available in different frame colours including the highly fashionable combination of satin black and satin tortoise shown here, Anteo also features Serengeti