These are the glass Polarized version not the polycarbonate ones. I loved these but they were a gift and they don’t fit my face. Like new condition and authentic Costas purchased directly from Costa. The trusted tool of the true angler, Costa's Blackfin sunglasses bring serious clarity and comfort to a day fishing, whether it's wrestling marlin in the deep sea, spinning up salmon in the river's current or fly casting for bonefish along the coast. Polarized, flexible and boasting a Hydrolite™ co-injected lining, these Costa men's Angler fishing sunglasses are made for performance and are a necessary addition to any tackle box. Model name: Blackfin Item no: BL 11 OBMP Frame color: Matte Black Lens color: Blue Mirror Lens material: Polarized Polycarbonate (580P) Frame fit: Regular Size: L