Martini M15 sunglasses Feature Martini's New 8 Layer "Ultra Polarized" Lenses with "Hardshell" proprietary scratch resistant coatings, "AR" anti reflective treatment to reduce rear and side glare and an Oleophobic coating which includes a Hydrophobic treatment that seals the lens surface and reduces the adhesion of grease and water. This makes a lens very easy to clean. These lenses are the Best in the World! The M15 features a Nylon Grilamid (almost indestructible) frame fitted with Ultra Polarized Polycarbonate (bulletproof material) lenses. Size 63-13-130. 8 Base curved 63.4mm wide lenses that are 39mm tall. Total weight of sunglass is 19 grams.