Oakley's TwoFace Prizm Sunglasses are inspired by surf and skate culture. Lightweight, but durable O Matter frames with aluminum lowers have clean lines and feature High Definition Optics for unmatched clarity and protection from UV rays. Prizm lenses offer maximized contrast and enhanced visibility with all the benefits of HDPolarized. Prizm Lenses, Best Use: Streetwear/Driving, Lens Material: Plutonite, Frame Material: O Matter, Polarized: No, Face Size: Medium, Nose Pads: Yes, Warranty: 2 Year Limited, Lens Type: Non-Mirrored, Model Year: 2018, Product ID: 517554, Frame Shape: Rectangle / Square, Model Number: OO9189-4060, GTIN: 0888392297112