Muy recomendable, antireflejo, foto cromático.I normally buy Serengeti sunglasses online and I've always been a fan of the 55mm lenses ... but the newer style circa Gregory Peck at 51mm I had yet to try. Took a chance and got this style and it is absolutely gorgeous.I'm not going to waste time talking about the lenses because Serengeti lenses are renowned for their clarity and these do not disappoint. Both are polarized glass, but still remarkably lightweight for glass. Don't get me wrong, you can feel them on your face but not so much that over time they tire you.But the frames ... and the new styles hinges ... my goodness they are stunning to look at. And the frames though thinner, don't feel cheap or unduly flexible.My face is medium large and the honey version felt a little tighter than the tortoise but is still fairly comfortable to wear.I want to try the Elyna and Delio next. They seem quite similar.Calidad absoluta !! No es mi primer serengueti !!! Nada mejor en lentes de solThe lenses are perfect for driving on those sunny/cloudy days. Cut the glare really well. Love the frames too!