The Costa Del Mar Men's Tuna Alley Polarized Sunglasses Are Performance sunglasses for the deep sea angler. Large frames and a polarized lens protect your eyes on all sides when the sun beats down from above and reflects off the open water. Vents prevent fogging and Hydrolite; nose and temple pads help them stay put. Features of the Costa Del Mar Men's Tuna Alley Polarized Sunglasses Comfortable large Fit Integral hinge Heavy-duty TR 90 nylon frame Includes hard case 100% UV light blockage for max protection 100% Polarization kills reflected glAre and reduces eye strain Built by hand and backed for life Every pair of Costas include a Lifetime Warranty Plastic lenses Are lightweight, impact- and scratch-resistant Glass lenses have the greatest clarity and Are scratch resistant