Omicron Leopard | Square shape.

Frame Color: Leopard

Lens Color: Brown 

Technical Information: Hand Polished

Width Nose Gap - Height Measurements of this pair: 145-24-48 mm

Hinge: Five-barrel

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.