From Maui Jim, the Ocean PolarizedPlus2® Cat Eye 57mm Sunglasses feature:  Cat-eye shape Nylon frame Saddle-style fixed bridge with embedded rubber nose pads for comfort Spring 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. 57mm eye - 16mm bridge - 135mm temple 6-base curve  Two-year warranty Imported.