From Maui Jim, these unisex sunglasses feature: Round shape Acetate frame Keyhole bridge Traditional Pin 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 Eye/Bridge/Temple approx. 52/22/146, 4 base curve Two year warranty Imported.