Native Eyewear Hardtop Polarized Interchangeable Lens Sunglasses Acetate^Rubber Imported Rhyno-Tuff Nylon frame Carbonate lens Polarized 1" high 1" wide Optical quality impact-resistant lenses that block 100 percent of the harmful UV light and eliminate glare for sharp Clear vision with increased contrast and depth perception All of Native's Polarized Crystal Carbonate Lenses incorporate a Polarized Filter which absorbs the Horizontal light thus eliminating Glare The Proprietary Composition of Cushinol creates a Non-Slip Grip that keeps Sunglasses in place during Athletic Activity Unbeatable Lifetime Warranty: Includes Scratched Lenses. Sportflex + Optic Gear Kit