So cool. This frame is made of cellulose propionate, a hypo-allergenic plastic that is ultra light and transparent in color. The lenses are ST super-thin polarized glass, 20% lighter than most glass lenses. Its as if they really were made in the shade. Choose from tortoise frames with HCL bronze lenses or glossy black frames with neutral gray lenses. All Maui Jim sunglasses have been recommended by The Skin Cancer Foundation as an effective UV filter for the eyes and surrounding skin. Style: Rectangle Frame material: Plastic Lens material: Glass Features: Anti-Reflective, mirrored, polarized, RX-able