Lens: CR-39 Polarized: yes Frame: zyl acetate Hinge: five barrel Case Included: hard case Featuring handmade frames and premium Carl Zeiss lenses, the Adin Polarized Sunglasses deliver noticeable quality and a flawless fit in a subtle yet sophisticated silhouette. The modern classic design is accompanied by glare-cutting polarized lenses and 100% UVA and UVB eye protection, adding to the functionality of these everyday shades.