From Maui Jim, the Unisex Joy Ride PolarizedPlus2® Round 49mm Sunglasses feature:  Round shape Acetate frame Keyhole bridge Traditional pin hinge MauiBrilliant™ Glass - 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. 49mm eye - 23mm bridge - 146mm temple - 4mm base curve  Two-year warranty Imported.