The Bridgetown Polarized from Smith Optics is a great fashion glass for women. A round lens profile, and metal bridge detail look great, and improve durability. The frame is made from Evolve eco-material for a distinct and elegant look. A polarized lens filters out light for enhanced color and clarity. Smith's Chromopop lens will brighten up your day. Feather-Light Frame, Chromopop Lens, Best Use: Fashion, Lens Material: Polycarbonate, Frame Material: Evolve Material, Polarized: Yes, Photochromatic: No, Interchangable Lens: No, Additional Lenses: No, Face Size: Medium, Nose Pads: Yes, Warranty: Lifetime, Lens Type: Polarized, Model Year: 2018, Product ID: 435838, Frame Shape: Round, Model Number: BNCPBRBK, GTIN: 0715757527822