Noah Noir | Round Shape. - Frame Color: Black- Lens Color: Gradient Noir- 1 Year Warranty This collection was named after "STUDIO" because of the lenses of its products. They all have gradient lenses, custom-made at our factory, for this particular collection. The sunglasses also have metal endings on the temples. Technical Information: Hand PolishedWidth-Nose Gap-Height Measurements of this pair: 140-23-47 mmLenses: Base 0°Hinge: Five-barrelFront thickness: 6 mm | Temples' thickness: 3.5 mm Lenses Technology: ✓ CR-39 Lenses CR-39 is made by polymerization of diethyleneglycol bis allylcarbonate (ADC) in presence of diisopropyl peroxydicarbonate (IPP) initiator."CR-39" is an abbreviation of Columbia Resin 39. CR3-9 has the highest Abbe value of any lens. An Abbe value defines the chromatic aberration of material, and this effect is generally more noticeable in peripheral vision than when looking through the center of a lens. ✓ 100% UV Protection.The lenses we use, have a UV protective coating with maximum filtration against harmful sun rays. ✓ Lenses Category: 3. The bigger the category number of lenses, the better. Category 3 in lenses, is considered better than categories 2 & 1. This is because they provide extra protection from both visible and UV light. These lenses allow less than 20% of visible light to penetrate the lens. This means that they will block out 80%+ of light. Category 3 lenses are considered the best lenses in the optical industry. Acetate Technology: ✓ Italian (Mazzucchelli) and Portuguese Raw Materials.Our Acetate Materials are coming from some of the biggest acetate factories in Europe. ✓ Engraved DE logo on the temples.Every pair has the engraved logo, product name, and measurements on both temples. Comes with a luxury box, eco-leather case, and cleaning cloth.
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