Martini M28 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 a Super Hydrophobic treatment on both sides of the lenses 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 M28 features injected Acetate Temples fitted with Italian Optical spring hinges utilizing dual flex points and double springs. The best hinges made in the world special ordered and fitted to the Monel frame front which is hidden behind the lenses giving you a beautiful frameless look. Eye size 68mm Bridge size 14mm Temple Length 125mm