Martini Stainless Performance M60 sunglasses Featuring Martini's New 8 Layer injected "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 M60 features an All Stainless frame with Optical spring hinges. Eye size = 60mm. Bridge width = 18mm. Temple Length = 130mm. This entire sunglass has a total weight of 17 Grams.