The Smith Langley is a medium fit/medium coverage aviator frame sunglasses. The Stainless Steel Frame is very durable to help withstand drops if they fall off your head. Anti-Reflective and Hydroleophobic Coatings on the lens will keep you seeing your best. Smith's Carbonic TLT Lens reduces scratches while keeping a clear view. Anti-Reflective and Hydroleophobic Lens Coatings, Carbonic TLT Lens, Medium Fit/Medium Coverage, Tailor Fit Adjustable Nose Pads, 6 Base Lens Curvature, Stainless Steel Frame Construction, Best Use: Fashion, Lens Material: Carbonic TLT, Frame Material: Stainless Steel, Polarized: No, Photochromatic: No, Interchangable Lens: No, Additional Lenses: No, Face Size: Medium, Nose Pads: Yes, Warranty: Lifetime, Lens Type: Mirrored, Model Year: 2019, Product ID: 499232, Frame Shape: Aviator, Model Number: LAPCGMGD, GTIN: 0715757554811