1990 Sunglasses

- Round shape- Acetate frame Technical Information: Hand MadeWidth-Nose Gap-Height Measurements of this pair: 145-23-47mmFront thickness: 4.8 mm | Temples thickness: 3.5 mm Lenses Technology: ✓ CR-39 Custom-Made 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. CR-39 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. Resin raw is injected into lenses mould. After that, the anti-scratch coating is applied. Anti-scratch technology. Unique colors, with over 4+ tests to achieve the final result. Gradient colors with smooth transition. All DE products have V-Groove (Removable Lenses - Technical feature that allows lenses to be removable, in order to add prescription etc) + Met