Costa Reefton Pro Polarized Fishing Sunglasses – 580G Glass Matte Black Lens:Sunrise Silver Mirror 580G Polarized Glass Backpack straps that tuck away hiking safety gear Backpack straps that tuck away into zippered compartment for streamlined carry polyurethane coated leather rand The Costa Reefton Pro is one of the most trusted fishing sunglasses on the water — and the PRO Series takes everything anglers already loved about the original Reefton and makes it better Costa's 580G glass lenses filter out the specific wavelengths of light that cause the most eye fatigue on the water — the yellow green spectrum — while enhancing reds