LotFancy Men's Aviator 61mm Polarized Sunglasses are very nice aviator sunglasses for the price. The sunglasses come with a nice hard-shell case too. The sunglasses' frame is well made, and made out of metal. The lenses are an impact resistant Polycarbonate composite. I received the polarized gray colored lenses, and they are a medium/dark gray color. The lenses are supposed to meet the UV400 Standard, although the glasses are not stamped UV400. I'm taking the vendor at their word. After wearing the glasses for several hours at the beach, I can say they're quite comfortable too. Currently priced at about $20, I think they're a good deal for anyone looking for a pair of polarized aviators.<br /><br />*Vendor supplied product sample for testing and review.