From Maui Jim, the Men's One Way 55mm Rectangular Polarized Sunglasses feature: Carbon fiber frame Rectangular shape Saddle-style bridge Spring hinge SuperThin glass lens material SuperThin glass provides the absolute crispest optics available. 32% thinner and lighter than standard glass, it offers the best scratch and solvent resistance Approx. 55mm eye - 18mm bridge - 145mm temple length - 43mm vertical size - 6mm plano curvature Imported.