Corven Black ROUND MEN 0 mm | Temples thickness:

0 mm | Temples thickness: 4

Anti-scratch Technology: Rimless sunglasses with nylon lenses are an investment

Toby Cherry

Our Acetate Materials are coming from some of the biggest acetate factories in Europe

CR-39 has the highest Abbe value of any lens

Corven Black ROUND MEN 0 mm | Temples thickness:Corven Black Unisex Shape. Frame Color: Black Lens Color: Dark Grey 2 Year Warranty Technical Information: Hand Polished. Width Nose Gap Height Measurements of this pair: 145 23 48 mm Hinge: Five barrel Lenses: Base 2 Front 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.