Costa Del Mar sunglasses are specifically engineered for FISHING BOATING & other WATER SPORTS: the Stringer is designed with a NYLON frame & WATER-REPELLENT POLARIZED lenses that eliminate water surface glare & ensure superb optical clarity. Wave 580 lenses REDUCE COLOR DISTORTION & yellow light. Costa Del Mar sunglasses provide 100% UV PROTECTION.55-19-133 mm Frame: Shiny Black Lens: Polarized Blue Mirror Wave 580 Glass