From Maui Jim, the Seacliff PolarizedPlus2® Aviator 54mm Sunglasses feature:  Aviator shape Monel metal frame Double bridge with adjustable, non-slip silicone nose pads Traditional hinge SuperThin Glass - Provides the absolute crispest optics available. 20% to 32% thinner and lighter than standard glass, it offers the best scratch and solvent resistance PolarizedPlus2® lenses eliminate 99.9% of glare, block 100% of harmful UV and absorb harmful HEV Rx able Approx. 61mm eye - 15mm bridge - 140mm temple 4-base curve  Two-year warranty  Imported.