The new S70R features the unique and innovative Shimano Metal Fit Design. A Beta titanium plate connects the two separate frames and is the secret behind the comfortable fit. With the 3D Digital Fit Technology and the additional adjustment features, this model offers immense performance. FRAME: Lightweight, strong, and durable Grillamid TR90 material. CNC molding for ultimate precision, symmetry quality. Dual injection molded non toxic TPE temple tips. 3D Digital Fit Technology. Shimano Metal Fit Design S.M.F.D with beta titanium plate. Lens angle adjuster total 16 deg.. Extra comfortable adjustable large nose pad. Extra comfortable adjustable templates. LENSES: Strong, rigid, and lightweight LexanR material by Gen. Electric. Full UV400 Protection. Interchangeable lens.