Ever know a guide whose eyes seemed perfectly calibrated to local waters Who could spot a bonefish among the shadows long before anyone else Meet Rafael. These performance Rafael Sunglasses with 580G Polarized Lenses from COSTA have aggressive styling, a wide temple design, and signature three-square hole venting to keep eyes nice and cool.FeaturesComfortable medium fit.Integral hinge.Heavy-duty TR-90 nylon frame.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 includes a lifetime warranty.Glass lenses have the greatest clarity and are scratch-resistant.