From Maui Jim, the Guardrails PolarizedPlus2® Aviator 58mm Sunglasses feature:  Aviator shape MauiFlex™ Memory Metal Frame Double bridge with adjustable, non-slip Rabalon nose pads traditional hinge MauiBrilliant - Maui Jim’s most advanced lens material that features optics nearly as clear as glass with just one-third of the weight PolarizedPlus2® lenses eliminate 99.9% of glare, block 100% of harmful UV and absorb harmful HEV Rx able Approx. 58mm eye - 17mm bridge - 130mm temple 6-base curve Two-year warranty Imported.